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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.
| 751. |
Solve |x| |
| Answer» Right | |
| 752. |
Show that the point A (1,-1,3),B (2,-4,5),C(5,-13,11) are collinear |
| Answer» 1/2[ x1(y2-y3) + x2(y3-y1) + x3(y1-y2) ] = 0 (if the points are colinear) put the values & check | |
| 753. |
If A={1, 2,3,} and B={2, 3}Find A×B |
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Answer» {(1,2),(1,3),(2,2), (2,3),(3,2), (3,3)} Answer = {(1, 2), (2, 2), (3, 2), (1, 3), (2, 3), (3, 3) } {(1,2),(1,3),(2,2),(2,3),(3,2),(3,3)}This is your answer |
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| 754. |
Cos 10 + Sin 10/Cos10-Sin10 |
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Answer» 1+tan10/1-tan10= tan45+tan10/tan45-tan10= tan45+tan10/1-tan45*tan10= tan(45+10) = tan55 1 |
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| 755. |
convert 40 degree 20 minutes into radian measure |
| Answer» Before going to do this problem we must know the following ideas1. 180 degrees = Pi radians2. 1 degree = Pi/ 180 radians3. 1 degree = 60 minutes1/3 degrees = 20 minutes | |
| 756. |
What are co terminal angles |
| Answer» | |
| 757. |
Which book should i prefer for applied mathematics?? |
| Answer» Nahi pata | |
| 758. |
Meaning of imply |
| Answer» Indicate | |
| 759. |
Draw the graph of following functions:-i)f(X)=1-x^2 |
| Answer» | |
| 760. |
Find the angle between the lines y = (2 3)(x + 5) and y = (2 + 3) (x 7) |
| Answer» Simple formula application based h | |
| 761. |
Solve √2x²+√2x +1 by middle term break |
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Answer» cos.cos+tan.tan=1,prove Something wrong with your question. Write question properly |
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| 762. |
What is venn diagram of A subset of B and subset of C (AcB)cC |
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Answer» (AcB)cC write venn diagram Ok but how |
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| 763. |
Show that cos x - cos you equal to -2 sin x+y/2 sin x -y/2 |
| Answer» It\'s given in ncert book.... Go n check page no. 69 n 70 .. | |
| 764. |
1247 |
| Answer» | |
| 765. |
Find the equation of the line passing through the points (3,-1) and (5,4) |
| Answer» | |
| 766. |
F(x)=x/1+x^2 find dmain and range |
| Answer» domain is x€{R} | |
| 767. |
DEFINE DOMAIN AND CODOMAIN???? |
| Answer» Domain\tThe set of all possible values which qualify as inputs to a function is known as the domain of the function, or it can also be defined as the entire set of values possible for independent variables.\tThe domain can be found in – the denominator of the fraction is not equal to zero and the digit under the square root bracket is positive. (In case of a function with fraction values).\t\tFor e.g. the domain of the function\xa0F\xa0is set\xa0A\xa0i.e. {India, Pakistan, Australia, Sri Lanka}. | |
| 768. |
Sequences and series |
| Answer» | |
| 769. |
cos(π÷4+x)+cos(π÷4-x)=√2 cos x |
| Answer» | |
| 770. |
solve the following equation for x belongs to c: x^2 + 4ix _4=0 please tell the answer |
| Answer» x=(-2i) | |
| 771. |
Prove that 9^(1/3)+9^(1/9)+9^(1/27)+..... infinite=3 |
| Answer» Hii lucifer kon se lesson pe ho aur ye kis lesson ka hai. Aur bhabhi ji kaha hai | |
| 772. |
The number of permutatios of n different object, taken r at a time, time repetition are allowed. |
| Answer» | |
| 773. |
Cos20° +sin20°÷cos20°- sin20°=tan65° |
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Answer» Prove krna h Tan65 |
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| 774. |
PT sinB-sinC/cosB.cosC+sinC-sinA/cosC.cosA+sinA-sinB/cosA.cosB |
| Answer» | |
| 775. |
combinations is in maths |
| Answer» Yes | |
| 776. |
Find the conjugate of (5+underroot2)³ |
| Answer» | |
| 777. |
what is permutation ? |
| Answer» A permutation is defined as an arrangement in a definite order of a number of objects taken some or all at a time. Counting permutations are merely counting the number of ways in which some or all objects at a time are rearranged. The convenient expression to denote permutation is defined as “\xa0nPr\xa0”.The permutation formula is given by,\tPr\xa0= n!/(n-r)! ; 0\xa0≤ r ≤ n\t | |
| 778. |
Sin(pi+theta)Sin(pi-theta)cosec^2theta |
| Answer» Sin(pi+ theta)= -sin theta. becoz in third quadrant sin is -veSin(pi- theta)= sin theta. becoz in 2nd quadrant sin is +veSin( pi+theta)Sin(pi-theta)cosec^2theta = - sin theta×sin theta(cosec^2 theta)= -sin^2theta × cosec^2theta= -1Ans=-1 | |
| 779. |
2 sin2A- 8 CosA sin^3 A = ? |
| Answer» | |
| 780. |
J I your valuable 6g |
| Answer» | |
| 781. |
The order of null set is -- |
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Answer» {} (0) Xes |
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| 782. |
3x4-5x2+7 f(x-1)find |
| Answer» | |
| 783. |
What is use of probility in our life |
| Answer» See my friend, It was made to get to know the assumptions or the predictions of certain objects or events which we call it. First. In lower classes u have been taught about only dices,numbers or coins. Bur,further in 11th and 12th u will find probability between sets between many data in corporate world.hope u find it usefull | |
| 784. |
What is the domain of 1/sqrt(1-x^2) |
| Answer» domain is x€(-1,1) | |
| 785. |
FS = 1/2mv^2-1/2mu^2 |
| Answer» | |
| 786. |
Can anyone tell what is "Hardy-ramanujan number"Also give an example |
| Answer» Sum of two different cubes in two different ways for example 1729 = 10cube +9 cube, 12 cube + 1 cube | |
| 787. |
The value of 1+2i+3i ^2 / 1-2i+3i^2 is |
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Answer» U can make groups like (1+3isquare)+2i/(1+3i square)-2i Further rationalise it Ans is i |
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| 788. |
Any lover of mathematical ?? |
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Answer» I too Mathematics..... Y... Bro i am a girl Yup bro |
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| 789. |
Period of sin^2 x + cos^6 x |
| Answer» | |
| 790. |
Deleted portion of maths?? |
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Answer» Thanks sathi gupta cbseacademic.nic.in . u can see here also 1. Statistics \uf0b7 Analysis of frequency distributions with equal means but different variances. 2. Probability \uf0b7 Axiomatic (set theoretic) probability, connections with other theories of earlier classes UNIT/ CHAPTER SYLLABUS REDUCED Unit- I: Sets and Functions 1.Sets \uf0b7 Difference of sets. \uf0b7 Complement of a set. Properties of Complement 2.Relations & Functions \uf0b7 (up to RXRXR ). \uf0b7 Sum, Difference, product and quotients of functions 3. Trigonometric Functions \uf0b7 General Solutions of trigonometric equations of the type siny=sina, cosy=cosa and tany= tana. Unit II: Algebra1.Principle of Mathematical Induction \uf0b7 Delete full chapter 2.Complex Numbers and Quadratic Equations \uf0b7 Polar representation of complex numbers. \uf0b7 Square root of a complex number. 3.Linear Inequalities Nil4. Permutations and Combinations \uf0b7 Derivationof formulae for nPrandnCr5.Binomial theorem \uf0b7 Delete full Chapter 6. Sequence and Series \uf0b7Formulae for the following special sums∑ ?,∑k2,∑ ?3. Unit III: Coordinate geometry 1.Straight Lines \uf0b7 Shifting of origin. \uf0b7 Equation of family of lines passing through the point of intersection of two lines.2 Conic sections \uf0b7 a point, a straight line and a pair of intersecting lines as a degenerated case of a conic section.3.Introduction to Three-dimensional Geometry Nil Unit-IV : Calculus 1.Limits and Derivatives Nil Unit-V : Mathematical Reasoning 1.Mathematical Reasoning \uf0b7 Delete full chapter |
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| 791. |
If 5 sinx=3 the value of sec x-tan x / sec x + tan x |
| Answer» | |
| 792. |
Show thatP(A:fie)=p(A) |
| Answer» | |
| 793. |
Set builder form ofset a{1/2 ,2/3,3/4,4/5,5/6,6/7} |
| Answer» A=(x:x is of the form n/n+1,n varies from 1 to 6) | |
| 794. |
Solve in brief. X to power 4 +4= ( x+1+i) ( x +1-i) ( x-1 -i) (x-1+i) |
| Answer» | |
| 795. |
Calculate :-sin135°, sin720°, sin360° |
| Answer» | |
| 796. |
Find the derivative of e √ tan x using first principle of derivative. |
| Answer» Pls answer | |
| 797. |
Let z1= 2+5i z2 = -3+8i z3= 4-4i verify Associative law and distributive law. |
| Answer» | |
| 798. |
Write the following sets in set -builder form :(i) {1/2,2/3,3/4,4/5,5/6,6/7}(ii) {1,4,9.........100} |
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Answer» Am i right R u satisfy or not? x:x belongs to N, x=n/n+1. 1≤N≤6 |
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| 799. |
Tan x + tan 2x + tan 3x = 0 , find the value of x |
| Answer» | |
| 800. |
Sin thita + Cos thita = 1Find the value of thita |
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Answer» R u satisfy? Thita=45° correct is thita=2n pie+pie/2and thita=2n pie previous was wrong thita= n pie+(-1)^n pie/4and thita=n pie |
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