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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.
| 1551. |
How to get good marks in maths class 11 |
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Answer» conplete ur syllabus within that day Practice till you didn\'t satisfy jaanna* ha mujhe bhi jaana h...? |
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| 1552. |
Find the local maxima and minima and points of inflection 3x`2 -6x+3 |
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| 1553. |
Derivative of tan inverse 5-x/6x^2-5x-3 |
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| 1554. |
If x+iy=√a+ib/√p+iq, prove that (x2+y2)2 =a2+b2/p2+q2 |
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| 1555. |
Find the slope of the line joining points (3,-2) & (-1,4) |
| Answer» Slope of given line, P(3,-2) and Q(-1,4)m = Y2 - Y1/X2 -X1m = 4-(-2)/-1-3m= 4+2/-4m = 6/-4m= 3/-2 | |
| 1556. |
Find the equation of the circle passing through the points (1,-5), (5,4), (10,5). |
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| 1557. |
Ex 12.2 question 3 |
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| 1558. |
in which coloured part did you write the common multiple of 4,6 and 5 |
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| 1559. |
Prove that d(logx)/dx =1/x. |
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| 1560. |
9x*x+2xy+y*y 9 |
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Answer» Ya what is the exect question ? What have to find |
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| 1561. |
3-45 |
| Answer» -42 | |
| 1562. |
Lim. X+X_0 |
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| 1563. |
Prove that tan50=tan40+2tan10 |
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Answer» Nice ?? tan50=tan(40+10)Now,tan(40+10) =(tan40+tan10)/1-tan40tan10tan50-tan50tan40tan10 = tan 40 + tan10(*tan40=cot50)tan50-tan10=tan40+tan10tan50 = tan40+2tan10 hence proved |
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| 1564. |
In the triangle ABC if A =75 and B=45 then b+2c |
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Answer» 2a b+2c= 165 |
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| 1565. |
Differentiate x ki power 6 by first principles |
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Answer» 30x^4 6x ki power 5ExplainationThe formula of x^n = nx^n minus 1Ex (a) X ^ 6 = 6X^ 5(b) X^ minus 6 = 6X^minus 7 Note :minus 6 minus 1 = minus 7 F(x)=x to power 6 6x^5 X^5 6 x di power 5 |
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| 1566. |
In a triangle ABC prove that tanB-C/2=b-c/B+c cot A/2 |
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| 1567. |
Lim (sec x - tan x)x--π/2 |
| Answer» 0 | |
| 1568. |
find the coordinate of centroid of triangle ABC withA (x1y1) B (x2y2) C (x3y3) |
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Answer» (X1+x2+x3/3,y1+y2+y3/3) Centroid [ (4*x1+ x2+x3)÷6 , (4*y1+ y2 +y3)÷6] |
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| 1569. |
LCM(a^2b^3,ab^2)= |
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Answer» a^2b^3 a^3b5 |
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| 1570. |
Prove that the following points are collinear(-2,3,5);(1,2,3);(7,0,-1) |
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Answer» Let its a three point A and B and C then it is colliner if the slope of points AB = BC Show that area of triangle formed is zero Just show that their slopes r equal |
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| 1571. |
Most important questions of conic section |
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| 1572. |
√x + 1/√x |
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Answer» Always greater than or equal to 2 . = √x + 1/√x= x/√x + 1/√x = {(x+1)/√x} × {√x/√x}= (x√x + √x)/x² |
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| 1573. |
limxtends to 0 (x+1)(x+1)(x+1)(x+1)(x+1)minus 1÷ x |
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Answer» 5 0 5 |
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| 1574. |
Prove that f\'(a+b)=f\'(a)+f\'(b) when f(x)=x square and when f(x)=x cube |
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| 1575. |
What is the derivative of f(×)=0 and at ×=3 |
| Answer» X3x3x | |
| 1576. |
Trignometry ka formula yaad kaise krna h bta do ??? |
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| 1577. |
(1+cos π/8) (1+cos3π/8) (1+cos5π/8) (1+cos7π/8)=1/8.Prove |
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| 1578. |
What is a,57-10 |
| Answer» 47 | |
| 1579. |
X=25+√624 find the value of x^3/2+1/x^3/2 |
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| 1580. |
x-1 derivation |
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Answer» d/dx( x-1) =(1-0)=1ans d(x-1)/dx = 1-0 = 1 1 Definition of energy |
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| 1581. |
What is .l.c.m |
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Answer» International college of manitoba Lowest common multiple |
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| 1582. |
If pth and qth term of g.p are q and p then show that (p+q)th is (q^p/p^q)1/p--q |
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| 1583. |
Divide 842from7 and also verify the amswer |
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Answer» 842/7 = 120.285 = 120.29 = 120.3 120.2857142857 120.2857142857 |
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| 1584. |
Class 11 syllabus for maths with marks for final exam this year |
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Answer» Go to cbse webside All chapter nearby 5 or 7 marks |
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| 1585. |
Wht is algebra |
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| 1586. |
Show that the line 27x -18y +25 =0 and 2× +3y +7 =0 are perpendicular to each other. |
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Answer» Since multiplication of slopes is -1.Hence they are perpendicular Inki slope nilal ke dono ka multiply -1 prove kr do |
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| 1587. |
Trigonometry difference |
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| 1588. |
solve the equation cosx + cos3x - 2 cos2x =0 |
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Answer» tanxx neeraj bhai Yrr mera maths bhtt weak hai Maths student Apply formula between cosx+ cos3x and then take common from whole question. Then take factors eyual to zero |
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| 1589. |
Please send me the all formulas of class 11th |
| Answer» You can take form online. | |
| 1590. |
Find the sum of odd integer from 1to 2001 |
| Answer» The odd integers from 1 to 2001 are 1, 3, 5 …1999, 2001.This sequence forms a Arithmetic ProgressionLet the first term be ‘a’ and common difference ‘d’.Let n be the total number of terms in the series.Here, first term, a = 1Common difference, d = 2If l denotes the last term of the seriesThen, l = a + (n – 1) × dHere, l = 2001⇒2001 = 1 + (n – 1) × 2⇒2001 – 1 = (n – 1) × 2⇒2000/2 = n – 1⇒1000 + 1 = n∴n = 1001Sum of A.P. =⇒Sn = 1002001∴The sum of odd numbers from 1 to 2001 is 1002001. | |
| 1591. |
Differentiate wrt x (xsinx+cosx)(xcosx-sinx) |
| Answer» ........... | |
| 1592. |
Variance of statistics |
| Answer» Do you want the formula??If yes so,Variance=(standard deviation)^2One more,Variance=sigma(xi-mean)/sigma fiAlso, variance=(sigma fixi^2/sigma fi)-(sigma fixi/sigma fi)^2 | |
| 1593. |
2cossquare x + sin x |
| Answer» 2sin²x-sinx-2 | |
| 1594. |
limx tends to infinity[ 1+2/x] power 5x |
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| 1595. |
Find the center of a circle passing through the points (6,-6),(3,-7)and (3,3) |
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| 1596. |
Find the value of x and y if 3x-2y=5 and 3y-2x=3 |
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| 1597. |
Trignomsatry |
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| 1598. |
Section formula derivation |
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| 1599. |
Whatis the mean deviation |
| Answer» Mean meaning average .count the no and it divide by total no | |
| 1600. |
If A & B are two sets ,then A intersection(A intersection B)" |
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