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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.
| 35851. |
M times of mth term =n times of nth tern prove that m+n th term=0 |
| Answer» A.P | |
| 35852. |
Find three solutions of x+3y=8 |
| Answer» 1.let x= 5 then y=12.let x=2 then y=23.let x= 8 then y=0 | |
| 35853. |
By cross multiplication (a-b) x+ (a+b)y=a2 -2ab -b2 |
| Answer» | |
| 35854. |
Sin30 + tan 45 - cosec 60 upon me sec 30 + cos60 +cot45. Please evaluate this |
| Answer» | |
| 35855. |
Imotent q |
| Answer» | |
| 35856. |
X-Y=5X+2Y=45 |
| Answer» subtracting the equations you can get value of y.........(x-y)-(x+2y)=5-45 =› -3y=-40 =› y=40/3 | |
| 35857. |
Prove of Pythagoras theorem |
| Answer» Ac²=Ab²+Bc² | |
| 35858. |
7÷2.ccos70sin20+3÷2.cos55.ccosec35tan5tan25.tan45.tan85.tan65 |
| Answer» please send the answer its urgent | |
| 35859. |
Show that tan1,tan2,tan3......................tan89=1 |
| Answer» tan1.tan89= tan(90-89).tan89= cot89.tan89=1..similarlyyou can get pairs of (2°&88°) (3°&87°) and so on. tan45°=1so the product of all the 1\'s=1 | |
| 35860. |
T rignometry |
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Answer» trigonometry= त्रिकोणमिति Plzz first tell what you want in trignometry |
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| 35861. |
Prove that sec^A+cosec^A will be never less than 2 |
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Answer» ok Please re write the question Don\'t know |
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| 35862. |
The product of2no is 70 find the no |
| Answer» | |
| 35863. |
Is ,sin(180-30)=sin30 |
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Answer» Friends this statement is completely true.. if we write the table of trigonometry from angle 0 to 360 as we have learnt from 0-90 so we will find its answer . You will learn that table in next standard. Hope i solved it . And also give a correct reason. Ur aks No, if we try it by changing both of them to cos. It will be like this:Sin(180-30)= Sin30Cos{90-(180-30)}= Cos (90-30)Cos{90-150}= Cos 60Cos (-60) = Cos 60Kindly note the angles are different one is negative and other is positive , negative angles don\'t exist thus the angle is not real . |
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| 35864. |
Prove that tan A /1+ sec A - tan A / 1- sec A = 2cosec A |
| Answer» Ur question is wrong Sec A- k jagha + aayaga miss | |
| 35865. |
What is the meining of mayank name |
| Answer» R u gone made | |
| 35866. |
Cos.tita.sin.thita |
| Answer» 1/secthita.cosecthita | |
| 35867. |
Find the value of x and yx+y=51/x +1/y=1/2 |
| Answer» | |
| 35868. |
4x2+4√3x+3=0 |
| Answer» | |
| 35869. |
Chapter 1st of RS agraval question n. 8 solution of exercise 1A plz hurry up |
| Answer» | |
| 35870. |
1/a+b+c = 1/a + 1/b + 1/ c |
| Answer» 1/a+b+c=1/a+1/b+1/c=>1/a+b+c -1/c=1/a+1/b=>[c-(a+b+c)] /c(a+b+c) =(b+a) /ab=>Cross multiplying (since a, b, c=0 and a+b+c=0) =>c(a+b+c) (b+a) = -ab(a+b) =>(a+b) (ca+cb+cc+ab) =0=>(a+b) (ca+cc+cb+ab) =0=>(a+b) (b+c) (c+a) = 0? | |
| 35871. |
In what form of decimals can irrational numbers be represented |
| Answer» Non terminating and non repeating decimal | |
| 35872. |
Show how root 5 can be represent on number line |
| Answer» According to the Pythagoras theorem, we can conclude that {tex}{\\left( {\\sqrt 5 } \\right)^2} = {\\left( 2 \\right)^2} + {\\left( 1 \\right)^2}{/tex} We need to draw a line segment AB of 1 unit on the number line. Then draw a straight line segment BC of 2 units. Then join the points C and A, to form a line segment BC. Then draw the arc ACD, to get the number {tex}\\sqrt 5 {/tex} on the number line. | |
| 35873. |
The nth term of an APis 3x+5 find its common difference. |
| Answer» We are given, an = 3n + 5 which is nth term.So, a1\xa0= 3(1) + 5 = 8and, a2\xa0= 3(2) + 5 =\xa06 + 5 = 11so common difference, d = a2\xa0- a1\xa0= 11 - 8 = 3Therefore common difference is 3 | |
| 35874. |
Divide 3xcube+xsquare+2x+5 |
| Answer» Answer | |
| 35875. |
-4 |
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| 35876. |
4xsqaur-4x+1 |
| Answer» (2x-1)² | |
| 35877. |
what is mathematics??? |
| Answer» | |
| 35878. |
What is a triangle |
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Answer» A closed figure with 3 side ,3 vertices & 3 angle . The sum of all angle = 180° A polygon of 3 sides |
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| 35879. |
If one root of quadratic equation 3x2-px-2=0 is2 then find the value of p and other root |
| Answer» p=5 and other root is -1/3 | |
| 35880. |
Fhrshshsnshdhdjsosknegdidme |
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Answer» The answer of this is hjnbdhelwnbwvdndkdhejnwkdjdbkdudhdbkdjdbdkwjgwjqkiwhbensmdvxhfudis ???what is this?? Answe for yor ghatiya question 6,8,18,19,8,19,8,19,14,19,8,4,8,4,10,19,15,19,11,14,5,7,4,9,4,13,5 ????? what\'s?? |
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| 35881. |
4x- 2x=14 |
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Answer» X =7 2x = 14Then, x = 14/2Then,x = 7 |
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| 35882. |
What is the saare of1086 |
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Answer» What is this?????? What do you mean... Gentlemen ?? |
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| 35883. |
What is the Roman number of 5000? |
| Answer» {tex}\\bar V{/tex} | |
| 35884. |
For what value of k, is 3 a zero of polynomial |
| Answer» 4 | |
| 35885. |
Solve the following system of equations8v-3u=5uv6v-5u=-2uv |
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Answer» V= 19/22 u= 7/11 No solution |
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| 35886. |
How to prepare maths for board exams. Anyone please |
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Answer» Do it yourself because i also don\'t know? Daily practise will make u perfect so practise hard Hello sejal Study hard! Prepare these topics well:- 1. Trigonometry2. Circles3. Triangles4. Quadratic Equations5. Co-ordinate Geometry7. Statistics8. Probabilty And hyyy aleena Roz ki practice se Hyyy |
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| 35887. |
If m times the mth of an ap is equal to n times nth term find (m+n)th term of an ao |
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Answer» Zero H |
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| 35888. |
What is the mean and standard deviation of 6,7,8,9 and 2 respectively ? |
| Answer» | |
| 35889. |
If HCF (a,b)=12 and a×b=1800,find the LCMof a and b |
| Answer» As we know that " Lcm×Hcf= product of two numbers" so, let lcm be \'a\'.than a× hcf= product of two numbers. a× 12=1800 . a= 1800/12. a=150 | |
| 35890. |
chapter 1 question no. 4 exercise 1.2 given that hcf (306,657) =find lcm (306,657). |
| Answer» L.C.M = product of 2 numbers / H.C.F | |
| 35891. |
Cos45Sen 30+cosec 30 |
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Answer» Cos 45 = 1/√2Sin 30 = 1/2Cosec 30 = 2Cos45 Sin30 + Cosec 30 = (1/√2) (1/2) + 2 = 1/2√2 + 2 = (1 + √2)/2√2 = (√2+3)÷2 |
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| 35892. |
Cos4A_cos2A=sin4A_sin2A |
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Answer» Thanks 22.5 |
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| 35893. |
Chapter 9 question numbers 14☺️ |
| Answer» Check NCERT Solutions here :\xa0https://mycbseguide.com/ncert-solutions.html | |
| 35894. |
how to balance the reaction of sodium and water to give product sodium hydroxide and hydrogen |
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Answer» Sodium metal reacts rapidly with water to form a colourless solution of sodium hydroxide (NaOH) and hydrogen gas (H2).2Na + 2H2O → 2NaOH + H2 2Na + 2H2O gives 2NaOH + H2Kindly note: I was unable to write subscript characters , henceforth H2O and H2 |
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| 35895. |
Exercise 3.6 |
| Answer» | |
| 35896. |
What Is Euclid Division lemma. |
| Answer» For any given two integers a and b there exists unique whole numbers p and q such that a=bq+r,where 0<_r | |
| 35897. |
y×y+(3underoot5)÷2-10 |
| Answer» | |
| 35898. |
Factorize x^5-y^5 |
| Answer» x5 − y5 = (x − y)(x4 + x3y + x2y2 + xy3 + y4) | |
| 35899. |
U-like mtp 3 24 |
| Answer» Whats that??? | |
| 35900. |
If1/a+b+x=1/a+1/b+1/x,then find x? |
| Answer» Given,{tex}\\frac { 1 } { ( a + b + x ) } = \\frac { 1 } { a } + \\frac { 1 } { b } + \\frac { 1 } { x }{/tex}{tex}\\Rightarrow \\quad \\frac { 1 } { ( a + b + x ) } - \\frac { 1 } { x } = \\frac { 1 } { a } + \\frac { 1 } { b } \\Rightarrow \\frac { x - ( a + b + x ) } { x ( a + b + x ) } = \\frac { b + a } { a b }{/tex}{tex}\\Rightarrow \\quad \\frac { - ( a + b ) } { x ( a + b + x ) } = \\frac { ( a + b ) } { a b }{/tex}On dividing both sides by (a+b){tex}\\Rightarrow \\quad \\frac { - 1 } { x ( a + b + x ) } = \\frac { 1 } { a b }{/tex}Now cross multiply{tex}\\Rightarrow{/tex}\xa0x(a + b + x) = -ab\xa0{tex}\\Rightarrow{/tex}\xa0x2 + ax + bx + ab = 0{tex}\\Rightarrow{/tex}\xa0x(x +a) + b(x +a) = 0{tex}\\Rightarrow{/tex}\xa0(x\xa0+ a) (x + b) = 0{tex}\\Rightarrow{/tex}\xa0x + a = 0 or x + b = 0{tex}\\Rightarrow{/tex}\xa0x = -a or x = -b.Therefore, -a and -b\xa0are the roots of the equation. | |