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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.
| 42651. |
What is the formula of discriminat |
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Answer» D=b²-4ac b²-4ac b² - 4ac D=√b^2-4ac b^2-4ac |
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| 42652. |
If sinA +sin^2A=1 then find the value of cos^2+cos^4. |
| Answer» sinA+sin =1sinA=1−sin2AsinA=cos2ANowcos2A+cos2A.cos2A=sinA+sin2A=1\xa0...(given) | |
| 42653. |
Prove that any spof positive integre is of the form 5q,5q+1,5q+4 form same integer q |
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| 42654. |
The two opposite vertics are (-1,2) and (3,2) find the coordinate of other two vertics |
| Answer» Vertices of? | |
| 42655. |
A tv tower stands vertically on a bank of a canal |
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Answer» Chup ? What is the question? |
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| 42656. |
A solid ball gets exactly filled in the cubical box of side b. Find the volume of the ball |
| Answer» Volume of cubical box is equal to volume of ball | |
| 42657. |
Pove that root 2 is irrational number |
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Answer» That\'s wrong Thank you Because we started the whole process assuming that a/b was simplified to lowest terms, and now it turns out that a and b both would be even. We ended at a contradiction; thus our original assumption (that √2 is rational) is not correct. Therefore √2 cannot be rational....A proof that the square root of 2 is irrational Yes I can help you Pls anyone pls give me ans beause i dont know how to solve of this questions |
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| 42658. |
Proof theorem 6.4 |
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| 42659. |
Is question bank helpful |
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Answer» Yes Yes Yes Yes Yes |
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| 42660. |
solve root 2 is an irrational number |
| Answer» Let us assume that √2 is rational such that p and q are coprimes and q not equal to 0Therefore, √2 = p/q => √2q = p , SQUARING ON BOTH SIDES : 2q^2 = p^2 ,2 divides p^2 therefore 2 divides p__________(1)Let us take p = 2r for an integer rTherefore, => 2q^2 = (2r)^2=> q^2 = 2r^22 divides q^2 therefore it also divides q __________(2)From (1),(2) It shows that p and q have 2 as common factor, but it contradicts the fact that p and q are coprimes.This contradiction has arisen due to our wrong assumption.Therefore, we conclude that √2 is irrational // | |
| 42661. |
If sum of first n terms of an AP is 2nsq+5n. Then find S20 |
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Answer» What is sq in 2nsq Please solve this ?????? |
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| 42662. |
Solve it 1+1(1+1). |
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Answer» 4 0 1 3 3 |
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| 42663. |
How to solve word problems of quadratic or linear equation in two variable.Please help me |
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Answer» Assume values then form equations, place the equations in proper places keeping arithmetic signs in mind and then solve ,afterwards split the mid term and you\'ll have two values of the variable choose the favourable value and at last write an answer line and underline the main answer. First thing is in chapter 4 there are not word problems because this is reduced from our syllabus |
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| 42664. |
Please send some questions to question bank |
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| 42665. |
Exercise 2.2 chapter polynomials |
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| 42666. |
HEN=140,CAP=? |
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| 42667. |
What is standard form of equations |
| Answer» Any number can be expressed as decimal numbers between 1 and 10 multiplied by a power of 10. This form of representation is termed as the standard form | |
| 42668. |
Lcm of 148 |
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Answer» 148 = 2×2×37 You have to give two numbers for LCM , here\'s the prime factorisation:148 - 2 × 2 × 37 Pls ? |
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| 42669. |
Simplify:- √1+cosθ /1-cosθ |
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Answer» Thank you³ Aur whole square laga key solve kar do?? Rationalise kar do Cosec, cot Multiply numerator and denominator by √1+cos to get √(1+cos)^2/√1-cos^2=1+cos/sin. |
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| 42670. |
Solved sample question paper |
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| 42671. |
Sin$ + Cos$ = 2 find Tan$ + Cot = ? |
| Answer» 2/3 | |
| 42672. |
To find the HCF of two numbers experimentally based on Euclid division lemma |
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Answer» Euclid\'s division lemma is removed a=bq+rWhere 0 | |
| 42673. |
Dfference between amalgam and alloy |
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Answer» By hand An amalgam is a homogeneous mixture of a metal in mercury whereas an alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal, generally made for improving one or more properties of metals. Example: When sodium dissolves in mercury, it forms sodium amalgam. When zinc and copper are combined, alloy named brass is formed. |
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| 42674. |
Who else completed their syllabus of class 10 |
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Answer» Nope. I\'m in 10th that too cbse,,? I.And now I want to chat with you |
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| 42675. |
If the perimeter and area of a circle are numerically equal then find the radius of a circle |
| Answer» Perimeter of circle = 2πrArea of circle = πr²According to the Question,Perimeter of circle = Area of circle2πr = πr²or, 2πr / πr = ror, 2 = ror, r = 2Hence the radius is 2. | |
| 42676. |
What to do if I had finished ncert, to score full marks in standard mathematics board exams |
| Answer» You should go sample papers and previous year question in my opinion as I am doing the same | |
| 42677. |
A quarter circle and two semicircles in a square of side side 32 cm. |
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| 42678. |
In angle abc ,if a+b =90 degree ,then find the value of cot c |
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Answer» Hence, the value of cot C = 0.In triangle ABC,angle B is 90 degree and AB:BC =2ঃ1 It is given to us that a+b is 90 it means angle c = 90 because the sum of all angles of triangle is 180 so when we put cot90=0 |
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| 42679. |
Prove that square root 3 and square root 2 is irrational |
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Answer» Let √3-√2 be a rational number. A rational number can be written in the form of p/q. p,q are integers then (5q²-p²)/q² is a rational number. ... Therefore,√3-√2 is an irrational number. Let √3-√2 be a rational number. A rational number can be written in the form of p/q. p,q are integers then (5q²-p²)/q² is a rational number. ... Therefore,√3-√2 is an irrational number ( Hence proved) |
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| 42680. |
What is mean by ogive |
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Answer» Yes crct It\'s not in our syllabus . |
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| 42681. |
(1+cotA +tanA)(sinA- cosA)=secA/cosec^2A- cosecA/ sec^2A = sinAtanA - cotAcosA |
| Answer» plz check ur question again I think ur question is wrong... | |
| 42682. |
which type of lines are represented by pairs of equations 5x - y + 6 = 0 , 2x - 2/5 + 7= 0 |
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Answer» Parallel lines Equation was wrong Sry parallel line Intersecting lines "No solution" parallel lines |
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| 42683. |
ps app ho |
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| 42684. |
Yah maths ?Bhi Kya Bala Hai Kabhi dimag Mein Goshti? hi nahin hai ?Koi tips de do naa? |
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Answer» Regular practice and hard work ; day 1 = ch.1,day 2 = ch.1 +ch. 2 ,day 3= ch.1+ ch.2 + ch.3.........and so on... ;(Ratna nahi hai , concept samajhna hai )And finally during exam time u need not do all questions. U will automatically b able to answer many questions. ?? |
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| 42685. |
Chapter 5 ex 5.3 question 20 |
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| 42686. |
Lcf of 3,9,29 |
| Answer» 3=3×1.......9=3^2×1......29=29×1(LCM=product of highest common factors)LCM=3^2×29=261.... | |
| 42687. |
Rational numbers and their decimal expansion |
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| 42688. |
The perimeter of rhombus ABCD is 40cm find the area of rhombus if it\'s digonal BD measure 12cm |
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| 42689. |
X²-4x+3 |
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Answer» x^2-4x+3x^2-x-3x+3x(x-1)-3(x-1)(x-1)(x-3)x-1=0 , x=1,x-3=0 , x=3.x=1,3. X = 3. Ans x^2-3x-1x+3=0x(x-3)-1(x-3)=0(x-1)(x-3)=0x-1=0 , x-3=0x=1 , x=3 |
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| 42690. |
What is the least number that is divisible by all the number from 1 to 10 and why? |
| Answer» The least number divisible by all the numbers from 1 to 10 will be the LCM of these numbers.....1=1 .......2=2×1 .....3=3×1......4=2×2......5=5×1.. ...6=2×3......7=7×1.......8=2×2×2........9=3×3.....10=2×5...........so,LCM of these numbers=1×2×2×2×3×3×5×7=2520........hence,least number divisible by all the numbers from 1 to 10 is 2520. | |
| 42691. |
If alpha and beta are the zeroes of polynomial x²-5x+k such that alpha-beta=1,find the value of k. |
| Answer» K=6 | |
| 42692. |
If A and B are the zeros of polynomial 4x^2-5x-1,find the value of A^2×B+A×B^2 |
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| 42693. |
3x-7y=10 के लिए y और x के रुप में व्यक्त कीजिए| |
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Answer» Plzz check your question ,your question is incomplete ... Your question is incomplete, please check it.... 3x-7y=10 के लिए y और x के रुप में व्यक्त कीजिए| |
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| 42694. |
Solve the following pair of linear equation by the elimination method and the substitution meyhod |
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Answer» Your question seems to be incomplete.Please verify your question which u asked.... Please provide the details of the question ??.... |
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| 42695. |
Find the product of two consecutive even natural numbers 44 × 46 without actual multiplication |
| Answer» 44 * 46 = (45-1)(45+1) = 45^2-1^2 = 2025-1 = 2024// | |
| 42696. |
Prove that Cos theta - sin theta+ 1 / Sin theta + cos theta - 1 = 1 / Cosec theta - Cot theta . |
| Answer» HGWGWZ | |
| 42697. |
Prove that - cosθ / (1-sinθ) = (1+sinθ) / cosθ |
| Answer» cos∅/ (1-sin∅) multiply with 1+sin∅ in both numerator and denominator, cos∅×(1+sin∅)/(1-sin∅)×(1+sin∅) = cos∅(1+sin∅)/1²-sin²∅[ 1=sin²∅+cos²∅ therefore 1-sin²∅ = cos²∅] cos∅(1+sin∅)/cos²∅ = 1+sin∅/cos∅ | |
| 42698. |
how many secants can be drawn in one circle |
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Answer» Infinite Tty cone formula Infinite Many |
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| 42699. |
If m cotA = n , find the value of m sinA - n cosA / n cosA + m sinA |
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| 42700. |
0 is not write in the form of 1/0 so 0 is a positive or negative |
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Answer» No!!!! 0 can be written in p/q form and it is a positive no. 32. Prove that: sinθ(1+tanθ) + cosθ(1+cotθ)= secθ+cosecθ |
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