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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.
| 16301. |
Find k in each quadratic equation. They have 2 equal roots |
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| 16302. |
If alpha and beta are the 0 of the polynomial 2x-4x+3 find alpha and beta |
| Answer» Wrong question | |
| 16303. |
if sinA =n sin B tanA= m tanB then prove that n²-1\\m²-1=cos²A |
| Answer» Given,\xa0tan A = n tan B{tex} \\Rightarrow{/tex} tanB = {tex}\\frac{1}{n}{/tex}tan A{tex}\\Rightarrow{/tex}\xa0cotB =\xa0{tex}\\frac { n } { \\tan A }{/tex}..........(1)Also given,\xa0sin A = m sin B{tex}\\Rightarrow{/tex}\xa0sin B =\xa0{tex}\\frac{1}{m}{/tex}sin A{tex}\\Rightarrow{/tex}\xa0cosec B =\xa0{tex}\\frac { m } { \\sin A }{/tex}.....(2)We know that, cosec2B - cot2B = 1, hence from (1) & (2) :-{tex} \\quad \\frac { m ^ { 2 } } { \\sin ^ { 2 } A } - \\frac { n ^ { 2 } } { \\tan ^ { 2 } A } = 1{/tex}{tex}\\Rightarrow \\quad \\frac { m ^ { 2 } } { \\sin ^ { 2 } A } - \\frac { n ^ { 2 } \\cos ^ { 2 } A } { \\sin ^ { 2 } A } = 1{/tex}{tex}\\Rightarrow \\quad \\frac { m ^ { 2 } - n ^ { 2 } \\cos ^ { 2 } A } { \\sin ^ { 2 } A } = 1{/tex}{tex}\\Rightarrow{/tex}\xa0m2 - n2cos2A = sin2A{tex}\\Rightarrow{/tex}\xa0m2 - n2cos2A = 1 - cos2A{tex}\\Rightarrow{/tex}\xa0m2 - 1 = n2cos2A - cos2A{tex}\\Rightarrow{/tex}\xa0m2 - 1 = (n2 - 1) cos2A{tex}\\Rightarrow \\quad \\frac { m ^ { 2 } - 1 } { n ^ { 2 } - 1 } ={/tex}\xa0cos2A | |
| 16304. |
Which subject we should study daily |
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Answer» The subject in which you are weak Do work hard ?☺️? Spacily math and science First main focus should be on difficult subject and both revision u have to carry side by. side. Hope helped u All subject per one or two hrs Science and Maths Of course maths. |
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| 16305. |
What is basic maths and what is standard maths?? |
| Answer» Means all the syllabus is same in both but questions pattern in board exam will be easy and slightly tuff respectively | |
| 16306. |
Mention Easiest method of Pythagoras theorem |
| Answer» Method of pythagoras theorem is (H)2= (p)2 + (B)2 | |
| 16307. |
Cbse maths new rule |
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Answer» U r right muskan singh Cbse maths new rule is math is divided in two category basic and standard |
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| 16308. |
Will maths paper for standard mathematics be hard than previous |
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Answer» No No, standard mathematics paper are as usual as previous one. If you practise maths daily then it will be easy I don\'t think so |
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| 16309. |
(x+a)+(x-b) = |
| Answer» (x+a)+(x-b) = x (x - b) + a (x -b)= x2 - bx + ax - ab= x2 - (b - a)x - ab | |
| 16310. |
Given:-TanQ+4/tanQ=5Find sinQ&cosQ |
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| 16311. |
How solve the maths questions to score good marks? |
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Answer» Hardwork is key to success Practise make a man perfect so we practise very hardly By doing practice By doing hardwork... By workouting the sums |
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| 16312. |
Ap questions not in ncert text |
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Answer» No it is present in ncert chapter 5 What do you mean by this question |
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| 16313. |
What is euclids devision lemma |
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Answer» For a pair of given positive integers ‘a’ and ‘b’, there exist unique integers ‘q’ and ‘r’ such thata = bq + r , where 0≤r | |
| 16314. |
Splitting the middle term 2xsquare +2x-236 |
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| 16315. |
Which book should we use for standard mathematics for class 10 |
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Answer» NCERT is compulsory Follow these 2 book u should get 95+ in maths saying with my prsnl experience i got 97 in maths 80 in theory 17 in practical NCERT + Ten years paper |
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| 16316. |
8xsquare-8x+8=0 |
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| 16317. |
Chapter 8th trigonometry explain the table |
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| 16318. |
Given that AB is parallel to CE and CD is parallel to EF , angle ABC is 40 degree then angle CEF is |
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Answer» 140degree40degree is wrong (challenge pranav mehta) 40 degree as angle abc and angle cef both are alternate interior angles |
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| 16319. |
What is the mean of Linear Eqn in two Variable? |
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Answer» Solving an equation by using two variables In linear eqn there is two or more variable |
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| 16320. |
Check whether 301 is a term of list of numbers5,11,17,23,...... |
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Answer» Yes yetish is right Given AP: 5,11,17,23,...\'301an= a + (n-1) d301= 5+ (n-1)6301-5 = (n-1) 6296 = (n-1) dn-1 = 296÷6n= 44.333333333......So we cannot get 301 in Ap: 5,11,17,23.... No |
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| 16321. |
How to find missing frequency in mode |
| Answer» Learning about mode methods | |
| 16322. |
If if cos theta equals to 3 by 5 evaluate sin theta minus cos theta upon 2 tan theta |
| Answer» 1 by 13 | |
| 16323. |
If cos theta equals to 3 by 5 evaluate sin theta minus cos theta upon 2 tan theta |
| Answer» aRE TERE PAPA SE PUCHO PAGAL | |
| 16324. |
prove that /5 is irrational |
| Answer» Let us assume that √5 is a rational number.we know that the rational numbers are in the form of p/q form where p,q are intezers.so, √5 = p/q p = √5qwe know that \'p\' is a rational number. so √5 q must be rational since it equals to pbut it doesnt occurs with √5 since its not an intezertherefore, p =/= √5qthis contradicts the fact that √5 is an irrational numberhence our assumption is wrong and √5 is an irrational number.\xa0 | |
| 16325. |
What is the quadrilateral |
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Answer» A closed figure bounded by 4 line segment . A closed figure and has sum of four angles is 360 9305018751 A figure which has 4 sides and 4 angles os called quadrilateral. |
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| 16326. |
How many triangles in the pyramid |
| Answer» 4 | |
| 16327. |
0÷0= 2 |
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Answer» 0÷0=2LHS(100-100)÷(100-100)=(10×10-10×10)÷(10×10-10×10)=(10+10)(10-10)÷10(10-10)=(10+10)÷10=20÷10=2Hence LHS =RHS . Wrong question Wrong question The answer is always zero when we divide anything with zero or zero is divided by zero If we divide anything with zero or zero is divided itself always answer is zero |
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| 16328. |
A square + b square ka whole square |
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Answer» A square +B square+2AB A2+B2+2ab Using identity A square + B square + 2AB = A + B ka whole square......... A^2 + b^2 +2ab |
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| 16329. |
Sec A= x+1/4x, prove that sec A+tan A=2x |
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| 16330. |
What are the top 30 question of trigonometry for class 10th data necessary for examination |
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| 16331. |
Which book is better for 10 rs agarwal or rd sharma |
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Answer» आई थिंग आर एस अग्रवाल I also think RD Sharma I think mtg cbse champion is best for all The best book for maths 10th is is NCERT book if you done NCERT book then use for good marks I think adi is more good than rs Aggarwal Rd Sharna is best RD.sharma is the best for class 10th I think rd sharma |
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| 16332. |
Singh pk can you give me some answer of my question |
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| 16333. |
How much questions of maths we should solve in a day |
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Answer» 50 We should 0 questions do because i am not do and my marks aate hain full aaj mere u.t.me 20/20 marks aaye the minimum 25 and maximum 50 |
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| 16334. |
Kx+4x +13+3K then find the value of K |
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Answer» Nhi Hii Kuch aur diya bhi hoga |
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| 16335. |
Verify 18×{9+(-7)}=18×9+18×-7 |
| Answer» 18×2=162-12636=36Verified | |
| 16336. |
Multiplication method x-3y-3=03x-9y-2=0 |
| Answer» We are given the equationx-3y-3 = 03x-9y-2 = 01/3 = -3/-9 and not equal to -3/-21/3 = 1/3 and not equal to 3/2So, it has unique solution.Because they satisfied the condition of unique solution\xa0 | |
| 16337. |
Sec^2Theta - tan^2theta=1 , then put theta =90° , you will get oo - oo =1 ??? |
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Answer» S2u Btw....mai yaha 1 month and 1 week baad ayi hu? Happy friendship day belated !!!? Hiii honey !! Mai gungun...mujhe bhul gaye ya jante ho??☺ How is it possible????? |
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| 16338. |
7+6×(5-7)÷2 |
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Answer» 2.5 7 + 6 × (5 - 7) ÷ 2= 7 + 6 × (-2) ÷ 2= 7 + 6 × (-1)= 7 - 6= 1 6 1 |
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| 16339. |
Sin theta /cos theta *tan theta =cot theta |
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| 16340. |
2+2×(4-3)÷2 |
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Answer» 2 2 + 2 × (4 - 3) ÷ 2= 2 + 2 × 1 ÷ 2= 2 + 2 × (0.5)= 2 + 1= 3 3 2 sorry, "0" is wrong 3 0 3 |
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| 16341. |
If roots of equation 3 X square + 2 X + p square + P - 2 =0 are of opposite of signs then find p |
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Answer» 9305018751 Hiii |
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| 16342. |
Find the value of k in this equation kx (x-2) + 6=0 |
| Answer» B^2-4ac =0By using this formula your answer is 6 | |
| 16343. |
Find the sum of two-digit natural number divisible by 6 |
| Answer» All the natural numbers less than 100 which are divisible by 6 are6, 12, 18, 24,................., 96Here, a1 = 6a2 = 12a3 = 18a4 = 24{tex}\\therefore {/tex}\xa0a2 - a1 = 12 - 6 = 6a3 - a2 = 18 - 12 = 6a4 - a3 = 24 - 18 = 6{tex}{a_2} - {a_1} = {a_3} - {a_2} = {a_4} - {a_3} = 6{/tex}( =6 in each case){tex}\\therefore {/tex}\xa0This sequence is an arithmetic progression whose difference is 6.Here, a = 6d = 6l = 96Let the number of terms be n. Then,l = a + (n - 1)d{tex} \\Rightarrow {/tex}\xa096 = 6 + (n - 1)6{tex} \\Rightarrow {/tex}\xa096 - 6 = (n - 1)6{tex} \\Rightarrow {/tex}\xa090 = (n - 1)6{tex} \\Rightarrow {/tex}\xa0(n - 1)6 = 90{tex} \\Rightarrow n - 1 = \\frac{{90}}{6}{/tex}{tex} \\Rightarrow {/tex}\xa0n - 1 = 15{tex} \\Rightarrow {/tex}\xa0n = 15 + 1{tex} \\Rightarrow {/tex}\xa0n = 16{tex}\\therefore {S_n} = \\frac{n}{2}(a + l){/tex}{tex} = \\left( {\\frac{{16}}{2}} \\right)(6 + 96){/tex}= (8) (102)= 816 | |
| 16344. |
after how many places will the decimal expansion of 147/120 terminate |
| Answer» One | |
| 16345. |
Sin 30 ka value |
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Answer» One by two according to trigonometry sin 30 value is 1/2 1/2 1/2 1/2 |
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| 16346. |
4x2+12x+8=0 |
| Answer» 4x2+12x+8 = 0 Then 32 is a multiplication of 1st and 3rd number without .Focteise 32 in 8 ×4 4x2+8x+4x+84x(x+2)+4(x+2)(4x+4)+ (x+2)X=1. x=-2 | |
| 16347. |
what are corresponding angles of two triangles |
| Answer» When 2 parellel lines are bisected by a single line which is little bend | |
| 16348. |
2, 7, 12 ... 242 term |
| Answer» here A=2 and d is 5 and An=242An=A+[n-1]d242=2+[n-1]5242-2=[n-1]5240/5=n-148=n-1n=49so 242 is 49th term | |
| 16349. |
Prove that n*n-n is divisible by 2 |
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Answer» Any positive integer is of the form 2q or 2q + 1, for some integer q.{tex}\\therefore{/tex} When n = 2q{tex}\\style{font-family:Arial}{n^2\\;-\\;n\\;=\\;n(n\\;-\\;1)\\;=\\;2q(2q\\;-\\;1)=\\;2m,}{/tex}where m = q(2q - 1) ( m is any integer)This is divisible by 2When n = 2q + 1{tex}\\style{font-family:Arial}{\\begin{array}{l}n^2\\;-\\;n\\;=\\;n(n\\;-\\;1)\\;=\\;(2q\\;+\\;1)(2q+1-1)\\\\=2q(2q+1)\\end{array}}{/tex}= 2m, when m = q(2q + 1) ( m is any integer)which is divisible by 2.Hence, n2 - n is divisible by 2 for every positive integer n. But mujhe yeh kuch kuch smjh aa raha h |
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| 16350. |
Happy Friendship day to all my dear friends. |
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Answer» Same2u? Thanks and Same tu u Thank you and same 2 you Same to you Same to u |
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