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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 3101. |
Find airthmetic mean between 14 and -6 |
| Answer» (A+B)/2=[14+(-6)]/2= 4 | |
| 3102. |
Derivative of tan Images https://swky.co/3Kbg1k by first principal |
| Answer» | |
| 3103. |
(X/4+16y)power10 find the middle term |
| Answer» As n=10 even ,n+1 = oddThen. Middle term = [(n/2)+1] th term i.e. 6 th term then from general term formula,.T(r+1)= T(6)= r=5 = 258048 x^5 y^5 | |
| 3104. |
Sin36 |
| Answer» sin 36=0.587 | |
| 3105. |
Three vertices of a parellelogram ABCD are A(3,-1,2)B(1,2,-4)C(-1,1,2) |
| Answer» What is the question | |
| 3106. |
If nc8=nc6 find nc2? |
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Answer» Ans is 91 if Cpn=Cqn⇒either p=q or p+q=n thus for C8n=C6n⇒n=8+6=14C2n=C214=14!12!*2!=14*132=91 |
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| 3107. |
Sir, I want videos of arthmatic progression |
| Answer» No | |
| 3108. |
If the pth,qth and rth term of an AP be a,b,c respectively, show that (q-r)a+(r-p)b+(p-q)c=0 |
| Answer» Coool | |
| 3109. |
Find the anthmetic meanbetween9and19 |
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Answer» The answer is 14 Answer : 14 Arithematic mean =( a + b )/2that means as u have two no.s 9 and 19. Let them as a and b and put them in formula.......u will get the answer |
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| 3110. |
Find image of (-2,3,5) in YZ plane |
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Answer» From which chapter this question is???? Mahendra plz tell me the reason.....i don\'t get the answer (2,3,5) |
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| 3111. |
Differentiation of Sec( tan √x) |
| Answer» The differentiation of sec {tan root( x )} is ? as given:Answer, y\'=sec(tan(x))tan(tan(x))(sec2(x))Solution :If, y=sec(f(x))then using chain rule, y\'=sec(f(x))tan(f(x))f\'(x)In same way, y\'=sec(tan(x))tan(tan(x))(tan(x))\'y\'=sec(tan(x))tan(tan(x))(sec2(x)) | |
| 3112. |
The curved surface area of a cone is 1159 5/7 cm. Area of its base is 254 4/7cm . Find its volume |
| Answer» | |
| 3113. |
WHAT IS L HOSPITAL RULE |
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Answer» R D Sharma is best book for maths For your knowledge -The rule is named after the 17th-century French mathematician Guillaume de l\'Hôpital. Although the contribution of the rule is often attributed to L\'Hôpital, the theorem was first introduced to L\'Hôpital in 1694 by the Swiss mathematician Johann Bernoulli. In mathematics, and more specifically in calculus, L\'Hôpital\'s rule or L\'Hospital\'s rule (French: [lopital]) uses derivatives to help evaluate limits involving indeterminate forms. Application (or repeated application) of the rule often converts an indeterminate form to an expression that can be evaluated by substitution, allowing easier evaluation of the limit. |
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| 3114. |
If tan A equals a/a+1 and tanB=1/2a+1 find A+B |
| Answer» Here, tanA =a/a+1. And. TanB = 1/2a+1 A = tan–¹(a/a+1)B = tan –¹(1/2a+1)A+B = tan–¹(a/a+1) + tan–¹ (1/2a+1) = tan–¹[(a/a+1) + (1/2a+1) / 1 - (a/a+1)(1/2a+1)] = tan–¹(2a²+2a+1/2a²+2a+1) = tan –¹(1) = tan–¹[tan(π/4)] =π/4 | |
| 3115. |
what is the formula of cotA-cotB |
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Answer» 1+cotAcotB/cotA-cotB The formula for Cot A - Cot B is ?. [-2 Sin A+B/2 • Sin A-B/2] , where dot implies to multiplication between them.??? {Sin(B-A)/SinASinB} |
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| 3116. |
what is the formula of (cos A-cosB) |
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Answer» cot A-cotB=cosA/sinA - cos B/sinB=(sinBcosA-cosBsinA) /sinAsinB=sin(B-A) / sinA sinB Sin(B-A)/SinASinB -2sina+b/2*sina-b/2 sorru sorry its not cos its (cotA-cotB) |
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| 3117. |
Find the derivative of (x^2+1) cos x using rules of differentiation |
| Answer» -2sin x is correct answer | |
| 3118. |
Find the distance between the point R(a+b\'a-b)and (a-b\'a+b) |
| Answer» d2= ((a+b)-(a-b))2 +((a-b)-(a+b))2=(a+b-a+b)2 + (a-b-a-b)2=4b2 + 4a2so d= ((4(a2+b2))1/2=2 root(a2+b2)\xa0 | |
| 3119. |
d÷dx (e^x) |
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Answer» Well i needed the procedure but i did it by my own thanks e^x |
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| 3120. |
What is rolles theorem |
| Answer» In calculus, Rolle\'s theorem or Rolle\'s lemma essentially states that any real-valued differentiable function that attains equal values at two distinct points must have at least one stationary point somewhere between them—that is, a point where the first derivative is zero. | |
| 3121. |
16nP3=13.n+1P3 find n |
| Answer» | |
| 3122. |
Line of the equation furmula |
| Answer» Y-y=m(X-x) (slope point form)x/a+y/b=1where a &b are intercept on x and yaxis | |
| 3123. |
Sinx² |
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Answer» 1-cos^2x 1-Cosxsquare |
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| 3124. |
Find the eq of a circle passing through (0,0) and passes through the point (4,5) |
| Answer» Slope =5-0/4-0=5/4.. Therefore, Equation=Y-5=5/4*(X-3)5X-4Y=0. | |
| 3125. |
Sum of odd integer from 1 to 2001 |
| Answer» 1002001 | |
| 3126. |
Limx->π/2 e^cosx-1/ π/2-x |
| Answer» | |
| 3127. |
Equation of circle |
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Answer» (X-h)whole square + (Y-k) whole square =rsquare (x-h)2+(y-k)2=r2 Answer |
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| 3128. |
What is set to |
| Answer» | |
| 3129. |
Value of cot(7.5)? |
| Answer» | |
| 3130. |
Liimits |
| Answer» In mathematics, a limit is the value that a function (or sequence) "approaches" as the input (or index) "approaches" some value.[1] Limits are essential to calculus (and mathematical analysis in general) and are used to define continuity, derivatives, and integrals.The concept of a limit of a sequence is further generalized to the concept of a limit of a topological net, and is closely related to limit and direct limit in category theory.In formulas, a limit is usually written as{\\displaystyle \\lim _{n\\to c}f(n)=L} \\lim _{n\\to c}f(n)=Land is read as "the limit of f of n as n approaches c equals L". The fact that a function f(n) approaches the limit L as n approaches c is sometimes denoted by a right arrow (→), as in{\\displaystyle f(n)\\to L\\ .} f(n)\\to L\\ . | |
| 3131. |
What do you understand the term factorial and write its formula |
| Answer» You can say that factorial is the product of first n given consecutive natural numbers .n! = 1×2×3×4×5×..................................×n | |
| 3132. |
Find value of sin18° |
| Answer» | |
| 3133. |
End points of such Letus Rectun of hyperbola which is in any of the 4 QUADRANT |
| Answer» | |
| 3134. |
Difference between limits and derivatives |
| Answer» The derivative is the slope of a function at some point on the function. The limit is your best guess at where the function will eventually end up when it approaches a particular number. The slope of a function could be 0 and it could be approaching 2 at x=0 if the function is y=2, for example. | |
| 3135. |
what is the different between Sigma and Integral |
| Answer» | |
| 3136. |
R.s aggarwal class 11 solutions |
| Answer» Of which question?? | |
| 3137. |
What is a ? |
| Answer» | |
| 3138. |
Find the eqn of circle with centre p,q& touching the y axis. 1.x^2+y^2+2qy+q^2 |
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| 3139. |
Cot(A-B) |
| Answer» Cot (A-B)= CotA.CotB+1 / CotB - CotA | |
| 3140. |
If 3x-2y +k=0 is a focal chord of the parabola x ^+8y=0 find the value of k. |
| Answer» | |
| 3141. |
Iota is equal to |
| Answer» square root of -1 | |
| 3142. |
Construct a triangle ABC in which BC=7cm, angle B=75°and AB+AC=13 cm |
| Answer» | |
| 3143. |
Solve this equation?? n(n+1)/2 *[6n+18] |
| Answer» | |
| 3144. |
If 7men can make 7 tables in 7days so, how much time will 10 men take to make 10 tables |
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Answer» Using unitary method 10 days |
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| 3145. |
Find the equation of circle drawn on line joining origin and (2,-4)as diameter |
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Answer» Put yhe formulae in diametrical form i. eIf the diametrical ends are (h, k) and (α,β)Then the equation of the circle is (x-h)(x-α) + (y-k)(y-β) = 0 x^2+y^2+(-2)x+4y=0 |
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| 3146. |
Find the image of the point (4, -13) with respect to the line mirror 5x + y +6 = 0 |
| Answer» | |
| 3147. |
lim cos 2x -1÷ cosx- 1x tends to o |
| Answer» 4 | |
| 3148. |
Cosec2Φ-cot2Φ |
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Answer» Cosec2ø-cot2ø=1/sin2ø - cos2ø/sin2ø=1-cos2ø/sin2ø=2sin²ø/2sinøcosø=tanø cosec2A-cot2A=1/sin2A-cos2A/sin2A=1/sin2A(1-cos2A)sin2A/sin2A=1\xa0 |
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| 3149. |
Limits and derivatives rs aggarwal chapter |
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| 3150. |
What is the value of sin x =? |
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Answer» 2(sin x/2)(cos x/2) 2π cos ( 90-x) |
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