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InterviewSolution
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.
| 36001. |
i want last year sample paper |
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Answer» Subject??? Which subject |
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| 36002. |
Find the value:-a)sin60° cos30°+sin30° cos60° |
| Answer» √3÷2×√3÷2+1÷3×1÷2=3÷4+1÷4=3+1÷4=4÷4=1 ans | |
| 36003. |
Root of x +y =7Root of y + x =11 |
| Answer» X+y=7X=7-yIn eq2 we put the value xY+x=11Y+7-y=11Y=4X+y=7X+4=7X=3 | |
| 36004. |
Give me blue print |
| Answer» | |
| 36005. |
Solve for x : 2x/x-3+1/2x+3+3x+9/(x-3)(2x+3)=0,xis not equal to 3,-3/2 |
| Answer» Hshsgs | |
| 36006. |
A two digit no. Is 4 times the sum of its digits.and twice the digits. Find the no. |
| Answer» Let the ten\'s place digit be y and unit\'s place be x.Therefore, number is 10y + x.According to given condition,10y + x = 4(x + y) and 10y + x = 2xy{tex}\\Rightarrow{/tex}\xa0x = 2y and 10y + x = 2xyPutting x = 2y in 10y + x = 2xy10y + 2y = 2.2y.y12y = 4y2\xa04y2\xa0- 12y = 0\xa0{tex}\\Rightarrow{/tex}\xa04y(y - 3) = 0{tex}\\Rightarrow{/tex}\xa0y - 3 = 0 or y = 3Hence, the ten\'s place digit is 3 and units digit is 6 (2y = x)Hence the required number is 36. | |
| 36007. |
SinA - cos A |
| Answer» As we know, sin^2 A + cos^2 A = 1.................................................................Which could be written as,(Sin A - cos A )^2 + 2 sinA cos A = 1(SinA- cos A)^2 = 1 - 2sinA cosASinA - cos A = root ( 1- 2sinA cosA) | |
| 36008. |
See me sample paper of Arthmetic progession and Quadratic equations |
| Answer» | |
| 36009. |
Converse of basic proportional rheorem |
| Answer» | |
| 36010. |
What is the common defference of an ap in which a21- a7 = 84 |
| Answer» A21+A7 = a+20d+a+6d84=2a+26d42=a+13dD=42-a÷13 | |
| 36011. |
3326+5555-585 |
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Answer» 8296 U can\'t do this ... of course ans is 8296 8296 8296 |
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| 36012. |
The sum of n,2n,3n term of an AP are S1,S2,S3 respectively . Prove that S3=3(S2_S1) |
| Answer» {tex}{S_1} = \\frac{n}{2}\\left[ {2a + (n - 1)d} \\right]{/tex}{tex}{S_2} = \\frac{{2n}}{2}\\left[ {2a + (2n - 1)d} \\right]{/tex}{tex}{S_3} = \\frac{{3n}}{2}\\left[ {2a + (3n - 1)d} \\right]{/tex}R.H.S = 3(S2 - S1){tex} = 3\\left[ {\\frac{{2n}}{2}(2a + (2n - 1)d - \\frac{n}{2}(2a + (n - 1)d)} \\right]{/tex}{tex} = 3\\left[ {\\frac{n}{2}\\left[ {4a + 4nd - 2d - 2a - nd + d} \\right]} \\right]{/tex}{tex} = 3\\left[ {\\frac{n}{2}(2a + 3nd - d)} \\right]{/tex}{tex} = \\frac{{3n}}{2}\\left[ {2a + (3n - 1)d} \\right] = {S_3}{/tex} | |
| 36013. |
Latest sample by cbse |
| Answer» At the google | |
| 36014. |
TanA/1-cotA + cotA/1-tanA = 1+ secA cosecA |
| Answer» You dont know answer solve it and get answer | |
| 36015. |
What is the distance between the points A(sin0 - cos0, 0)and B(0,sin0+ cos0)? |
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Answer» AB= √{0-(sin0 - cos0)}^2 + {(sin0 + cos0) - 0}^2 = √(sin^2 0 + cos^2 0 -2sin0cos0 + sin^2 0 + cos^2 0 + 2sin0cos0 = √sin ^2 0 + cos^2 0 + sin^2 0 + cos^2 0 = √1+1 =√2 Root 2 |
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| 36016. |
What is probablity |
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Answer» Meassuring uncertainity is called as probability the quality or state of being probable; the extent to which something is likely to happen or be the case. |
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| 36017. |
What is probablity of getting 40mark in the maths paper |
| Answer» Total marks in maths=100P(getting 40 marks)= 40/100 2/5 | |
| 36018. |
Iines and angles of 7th CBSE exercise |
| Answer» Kuta | |
| 36019. |
Is there any change syllabus of class 10 maths? |
| Answer» By my knowledge, no | |
| 36020. |
A(x)square -bx+c Find Alfha - bata |
| Answer» (b+c)/a | |
| 36021. |
If P(E)=0.05,what is the probability of \'not E\' |
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Answer» 0.95 P(Not E)= 1- P(E) = 1-0.05 = 0.95 |
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| 36022. |
Probalty |
| Answer» | |
| 36023. |
(CotsquareA +cosecsquareA)) |
| Answer» Its equal to one right...... | |
| 36024. |
the two opposite vertices of a square are - 12 |
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Answer» What is ques. here What is your question?? |
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| 36025. |
What is common difference |
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Answer» If the difference between any consecutive term of an AP is same or equal then the difference is known as common difference. a2-a1 When common difference is same is called Ap |
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| 36026. |
If sn=3n+5n² find 20th term |
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Answer» n=1 S1=A1=3(1)+5(1) A1=8Similarly S2=A1+A2=26A2=26-A1=18d=A2-A1=10Now,nth term=A1+(n-1)dSo 20th term=8+(20-1)10=8+190=198 n=20 Sn=3×20+5×400 =60+2000 =2060 |
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| 36027. |
Ex-6.2 |
| Answer» | |
| 36028. |
How much 8 chapter weight age is there |
| Answer» How much water in the brain | |
| 36029. |
Do optional exercises come in board examination? |
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Answer» Yes offcource they just make us to belive that they wont give but every time they will give 2 problems every time in board exam No it is for practice Yes Yes chances are there No |
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| 36030. |
Ex 7 A question 6 new book of rs aggarwal |
| Answer» I know answer | |
| 36031. |
if the the sum of the 1st n terms of an ap iS given by sn=5n² + 3n. find its nth term |
| Answer» S1=5×1×1+3×1 =8a1=8S2=5×2×2+3×2 =26a1+a2=268+a2=26a2=18d=a2-a1 =18-8d =10an=a+(n-1)d =8+(n-1)10 =8+10n-10 an=10n-2 | |
| 36032. |
Cos square theta into cos square theta |
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Answer» Cos raised to power 4 theta 7itim |
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| 36033. |
Mid term of -273 |
| Answer» 139 | |
| 36034. |
4u-v=14uv3u-2u=16uvWhere u and v not=0. |
| Answer» | |
| 36035. |
Prove that sinA-cosA+1÷sinA+cisA-1=1÷secA-tanA |
| Answer» | |
| 36036. |
Prove n is a rational number |
| Answer» | |
| 36037. |
X/2 -y/9=6X/7+y/3=5 |
| Answer» Hello | |
| 36038. |
3^1/2×SinX=CosX |
| Answer» | |
| 36039. |
Ihghv |
| Answer» | |
| 36040. |
How to prove root 2,3 |
| Answer» | |
| 36041. |
Maths lab manual activities second how to draw the graph of the equation 3 X square- 3 x-5 |
| Answer» | |
| 36042. |
(-250)+56(-56) |
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Answer» -3386 250 |
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| 36043. |
Cos(22/7/4-x) cos22/7/4-y) - sin(22/7/4-x)sin(22/7/4-y) =sin(x+y) |
| Answer» We have L.H.S=. {tex}\\cos \\left( {\\frac{\\pi }{4} - x} \\right)\\cos \\left( {\\frac{\\pi }{4} - y} \\right)\\sin \\left( {\\frac{\\pi }{4} - x} \\right){/tex}{tex}\\sin \\left( {\\frac{x}{4} - y} \\right){/tex}{tex} = \\cos \\left[ {\\frac{\\pi }{4} - x + \\frac{\\pi }{4} - y} \\right]{/tex}[ {tex}\\because {/tex}cos (A+ B) = cos A cos B - sin A sin B]{tex} = \\cos \\left[ {\\frac{\\pi }{2} - (x + y)} \\right]{/tex}= sin (x + y) = R.H.S | |
| 36044. |
Cbse class 7 |
| Answer» | |
| 36045. |
What is the value of sin squared theta plus one by one plus 10 squared theta |
| Answer» 1 | |
| 36046. |
Prove that:-1+cosA+sinA/1+cosA-sinA=1+sinA/cosA |
| Answer» | |
| 36047. |
Which term of the AP..3,8,13,18,.........is 78 |
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Answer» 16 16 15 |
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| 36048. |
The sum of 3 terms of an ap is 24 and their product is 240 find the 3 terms of the AP |
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Answer» \u200b\u200b\u200b\u200b\u200b\u200blet the terms of\xa0a.p.= a-d, a,a+d,\xa0now, according to question\xa0a-d+a+a+d=243a =24a=24/3= 8again according to question\xa0(a-d)(a)(a+d)= 240(a2 - d2)(a)= 240now putting the value of a(8^2 -d^2)×8 =24064-d^2=240/8= 3064-30 = d^2d = root34so the terms = 8-root34, 8, 8+ root34 I don\'t know |
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| 36049. |
how to know divisible of 13 |
| Answer» | |
| 36050. |
If p,q are prime positive integers prove √p+√q is irrational |
| Answer» Suppose that {tex} \\sqrt { p } + \\sqrt { q }{/tex} is a rational number equal to {tex} \\frac { a } { b }{/tex}, where a and b are integers having no common factor.Now,\xa0{tex} \\sqrt { p } + \\sqrt { q } = \\frac { a } { b }{/tex}{tex} \\Rightarrow \\sqrt { p } = \\frac { a } { b } - \\sqrt { q }{/tex} (squaring both side){tex} \\Rightarrow \\quad ( \\sqrt { p } ) ^ { 2 } = \\left( \\frac { a } { b } - \\sqrt { q } \\right) ^ { 2 }{/tex}{tex} \\Rightarrow \\quad p = \\frac { a ^ { 2 } } { b ^ { 2 } } - 2 \\left( \\frac { a } { b } \\right) \\sqrt { q } + q{/tex}{tex} \\Rightarrow \\quad 2 \\left( \\frac { a } { b } \\right) \\sqrt { q } = \\frac { a ^ { 2 } } { b ^ { 2 } } + q - p{/tex}{tex} \\Rightarrow \\quad 2 \\frac { a } { b } \\sqrt { q } = \\frac { a ^ { 2 } + b ^ { 2 } ( q - p ) } { b ^ { 2 } }{/tex}{tex} \\Rightarrow \\quad \\sqrt { q } = \\frac { a ^ { 2 } + b ^ { 2 } ( q - p ) } { 2 a b }{/tex}{tex} \\Rightarrow \\sqrt { q }{/tex}\xa0is a rational number. (because sum of two rational numbers is always rational)This is a contradiction as\xa0{tex} \\sqrt { q }{/tex}\xa0is an irrational number.Hence,\xa0{tex} \\sqrt { p } + \\sqrt { q }{/tex}\xa0is an irrational number. | |