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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.
| 32401. |
If sin (A+B)=cos (A-B) =√3/2 then find A and B |
| Answer» Sin(A+B)=underoot3/2Sin(A+B)=Sin 60A+B=60Similarly (A-B)=30Substituting B=15,A=45 | |
| 32402. |
3 root 2 - root 2 |
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Answer» Let √2 = x. Now 3x - x = 2x. Therefore answer = 2√2. 2√2... |
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| 32403. |
2x+3=5by3 |
| Answer» 2x + 3 = 5/32x = 5/3 - 32x = (5-9)/32x = -4/3x = -4/6 | |
| 32404. |
Solve by substitution method 2x+5y=21and 3x-2y=-16 |
| Answer» Y=5,x=-2 | |
| 32405. |
Is there any student from TAPA OR from SHIVALIK PUBLIC SEN. SEC. SCHOOL, TAPA ?????? |
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Answer» Im not Thanks Amrita ...... No |
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| 32406. |
Find all zeros of polynomial 4x4-20x³+23x²+5x6,if two of its zeros are 2 and 3 |
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| 32407. |
The decimal expansion of the rational numbers 97/2multiply5multiply will terminate after |
| Answer» It will terminate after 1 decimal place | |
| 32408. |
2+3+100=? |
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Answer» 2+3+100= 105 105 2+3+100= 105 Jh 105 |
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| 32409. |
The third zero of the polynomial if the sum and product of whose zeroes are -3 and 2 is |
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| 32410. |
X+1/2+y-1/8 and x-1/3+y+1/2=2 |
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| 32411. |
Prove that 3/2√3 is irrational |
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| 32412. |
If Sec tita=5/4, verify that Tan tita/1+tan²tita=sin tita/sec tita |
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| 32413. |
What is the value of m if 4m-2n = 120If n=20+m ? |
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Answer» 26. 66........................ 4m-2n=120 ..........(1)n=20+m........(2)Put it in equation(1)4m-2[20+m] =1204m - 40+ 2m=1206m-40=1206m=120+406m=160m=160/6m=26.66.............. |
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| 32414. |
Rd shrma |
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Answer» R D. Shrma is an extra revision bookLike MODERN ABC . It is also a extra book Naam suna h |
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| 32415. |
Show using an example that division is not commutative for rational numbers |
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| 32416. |
Why is maths important |
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Answer» Wel.................. I agree with Beauty Queen. But still its not necessary to be so rude. Maybe it was the child\'s first question. Beauty quee You have no right to comment students can asking relates to study not other purpose The one who will report this question hit Thanks button below my name so that I could get to know how many children are there on this app who want to study.... |
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| 32417. |
12+1 |
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Answer» 13 13 13 13 Go to 1st class child nd ask this question from him.....Pass kri bhi h 9th class ya aise hi beth gya 10th class m aakr.....But yah lockdown is going on so tum kaha 1st class k child se ye question pooche jaoge let me tell u its answer 12+1=13 |
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| 32418. |
Solve practice paper 1 of arithmetic progression |
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| 32419. |
Define mathmatics |
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Answer» Maths not only a subject for learning or limited for a school but it involve teaching for live simpler mean for life. MATHS - Meri Atma Tughe Hamesha Satayegi. ?. Sorry for this silly reply. But i dont like maths at all. Mathematics include quantity, geometry ,and algebraic expression |
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| 32420. |
Proof that equal chords of a circle subtend equal angles at the centre |
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| 32421. |
If x=cosecA+cosA and y=cosecA-cosA then prove that (2/x+y)+(x-y/2)=1 |
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| 32422. |
What do you mean by equality slimmer |
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| 32423. |
The sum of three no. is -3 and their product is 8 find the three numbers |
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| 32424. |
Express each number as product |
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| 32425. |
Terminating and non terminating expansion rational number |
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Answer» HOPE THIS WOULD HELP U TO UNDERSTAND ?? For understanding u, terminating means decimal ke baad jb no. Pura complete ho jayata hai...then that no.is terminating no.for eg. 34525/2 = 17262.5 WHEREAS non terminating vo hote hai jiska end na ho ...i mean jo continuously chalte rehete hai.... for eg. If there is any no. When we divide the no. Not ends...let it may be 4.090090009900009...........so on....... Integers are positive and negative whole numbers including zero, such as {-3, -2, -1, 0, 1, 2, 3}.When these whole numbers are written in the form of ratio of whole numbers it is known as rational numbers. So, rational numbers can be positive, negative or zero. So, a rational number can be expressed in the form of p/q where ‘p’ and ‘q’ are integers and ‘q’ is not equal to zero.Rational Numbers in Decimal Fractions:Rational numbers can be expressed in the form of decimal fractions. These rational numbers when converted into decimal fractions can be both terminating and non-terminating decimals.Terminating decimals: Terminating decimals are those numbers which come to an end after few repetitions after decimal point.Example: 0.5, 2.456, 123.456, etc. are all examples of terminating decimals.Non terminating decimals: Non terminating decimals are those which keep on continuing after decimal point (i.e. they go on forever). They don’t come to end or if they do it is after a long interval.For example:π = (3.141592653589793238462643383279502884197169399375105820974.....) is an example of non terminating decimal as it keeps on continuing after decimal point.If a rational number (≠ integer) can be expressed in the form p2n×5m, where p ∈ Z, n ∈ W and m ∈ W, the rational number will be a terminating decimal. Otherwise, the rational number will be a nonterminating, recurring decimal. |
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| 32426. |
Prove 2 irrational number |
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Answer» Solve it bro 2 is a rational number so we can\'t prove it as irrational |
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| 32427. |
Ex:-2.1 |
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| 32428. |
Using ecluid method find hcf of 210 and 55 |
| Answer» 210 = 55\xa0× 3 + 45 55 = 45\xa0× 1 + 1045 = 10\xa0× 4 + 510 = 5\xa0× 2 + 0HCF(55, 210) = 5 | |
| 32429. |
32+78=96 how |
| Answer» By mistake | |
| 32430. |
Write the coordinates of reflection of point (3,5) in x axis and yaxis |
| Answer» The coordinate of given points are (3,5).If a point reflected across the x-axis, then{tex}(x,y)\\rightarrow (x,-y){/tex}{tex}(3,5)\\rightarrow (3,-5){/tex}Therefore the coordinates of the given point after reflected across the x-axis are (3,-5).If a point reflected across the y-axis, then{tex}(x,y)\\rightarrow (-x,y){/tex}{tex}(3,5)\\rightarrow (-3,5){/tex}Therefore the coordinates of the given point after reflected across the x-axis are (-3,5). | |
| 32431. |
Find the roots:-√2x*x+7x+5√2 |
| Answer» √2x*x+5x+2x+5√2x(√2x+5)+√2(√2x+5)(√2x+5) (x+√2) | |
| 32432. |
Solve 9x²-3x-2=0 using factorisation |
| Answer» 9x²-3x-2= 0 9x²-6x+3x-2 = 0\xa03x(3x-2)+1(3x-2) =0 (3x+1)(3x-2) = 03x + 1 = 0 and 3x - 2 = 0x = - 1/3 , 2/3 | |
| 32433. |
X^3-X |
| Answer» X(x^2-1) | |
| 32434. |
What is mode of 5,5,5,5,5 |
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Answer» ??? 5 ? 5 5 |
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| 32435. |
1+ cot2A ---------- = cosecA 1+secA |
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| 32436. |
1whole2 by3 add 2 whole 3 by 2 |
| Answer» 11 by 3 | |
| 32437. |
Solved equation 8a –9b =1 and 10a + 6b by elimination |
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| 32438. |
Cot54degree/tan 36degree+tan20degree/cot70gegree-2 |
| Answer» Q.\xa0{tex}\\huge {\\frac{\\cot\\ 54^\\circ}{\\tan\\ 36^\\circ}+\\frac{\\tan\\ 20^\\circ}{\\cot\\ 70^\\circ} -2=?}\\\\{/tex}Sol:\xa0\t{tex}\\huge {=> \\ \\frac{\\cot\\ 54^\\circ}{\\tan\\ 36^\\circ}+\\frac{\\tan\\ 20^\\circ}{\\cot\\ 70^\\circ} -2}\\\\.\\\\\\huge {=> \\ \\frac{\\tan\\ 36^\\circ}{\\tan\\ 36^\\circ}+\\frac{\\tan\\ 20^\\circ}{\\tan\\ 20^\\circ} -2}\\\\.\\\\\\huge {=> \\ 1+1 -2}\\\\.\\\\\\huge {=> 0}\\\\.\\\\{/tex}{tex}\\Large {\\Bigg( {\\because\\ \\cot \\ \\theta=\\tan\\ (90^\\circ-\\theta)\\\\\\therefore \\cot\\ 54^\\circ=\\tan\\ (90^\\circ-54^\\circ)=\\tan\\ 36^\\circ\\\\and,\\ \\cot\\ 70^\\circ=\\tan\\ (90^\\circ-70^\\circ)=\\tan\\ 20^\\circ\\Bigg)\\\\}}{/tex}\t\xa0 | |
| 32439. |
Priya Sharma you can make friend ship with me |
| Answer» | |
| 32440. |
4.1 exercises |
| Answer» Please write your actual question | |
| 32441. |
Solve 1/2(2x+3y)+12/7(3x-2y)=1/2,7/2x+3y +4/3x-2y,where 2x+3y≠0 and 3x-2y≠0 |
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| 32442. |
Find the zeroes of the polynomial x²-4x+8 |
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Answer» {tex}\\huge {=>\\ x = {-b \\pm \\sqrt{b^2-4ac} \\over 2a}}\\\\\\huge {=>\\ x = {-(-2) \\pm \\sqrt{(-2)^2-4(1)(8)} \\over 2\\times 1}}\\\\\\huge {=>\\ x = {2 \\pm \\sqrt{4-32} \\over 2}}\\\\\\huge {=>\\ x = {2 \\pm \\sqrt{-28} \\over 2}}\\\\\\huge {=>\\ x = {1 \\pm \\sqrt{-7} }}\\\\\\text{Since,} \\huge{ {b^2-4ac}}\\ is\\ smaller\\ than\\ 0.\\ Thus,\\ no\\ real\\ roots\\ or\\ zeros\\ exist.{/tex} U can use quadratic formula ie - b +- √b^2-4ac/2a |
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| 32443. |
What is the meaning of < and > |
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Answer» grater and smaller Arey in maths एवं,तथा,व तथा और |
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| 32444. |
Is the Euclid Division Algorithm and Euclid Division Lemma same? |
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Answer» No No No diffrent No Yes both are same |
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| 32445. |
1.5 +5.68544 /1.635*5.72 |
| Answer» 7.18544/9.3522 | |
| 32446. |
Hlo sir plz explain lesson 2 polynomial I can\'t understand |
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Answer» Youtube (Unacademy channel of class 9th and 10th) Teacher\'s name is Surabhi gangwar https://www.youtube.com/playlist?list=PLag1CXTqVRCcjoyXv0Icmi7L8jE20RJDV |
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| 32447. |
Difference between altitude and perpendicular। |
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Answer» Perpendicular - let AD Perpendicular to BC so it divide BC into two equal parts and make 90° angle ButAltitude- altitude only makes 90° Both are same. |
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| 32448. |
For what value of k the following has no solutions 2x+3y=5,6x+ky=15 |
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Answer» But 2/6=1/3 and 5/15= 1/3So their solutions with infinite solution or unique solution We have two Equations: 2x +3y= 5 6x +ky= 15For No Solution, We have: a1/a2 = b1/b2 ≠ c1/c2Here, a1 = 2 , a2 = 6 , c2 = 15 , c1 =5 & b1 = 3 , b2 = kSubstitute given values in Formula: a1/a2 = b1/b2 ≠ c1/c2→ 2/6 = 3/k ≠ 5/15→ 2/6 = 3/k→ 18 = 2k→ k = 18/2→ k = 9Therefore, Value of k is 9. |
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| 32449. |
class 10 CBSE math 8.1 ke 1 Sawal |
| Answer» Doubt kya hai yeh batao. | |
| 32450. |
Cbse class10 board ka result kb ayega |
| Answer» August | |