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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.
| 13201. |
If pth qth rth terms of an AP are a,b,c respectively, then show that a(q-r)+b(r-p)+c(p-q)=0 |
| Answer» Let the first term and common difference of the AP be A and Dpth term = a ……… (given)= A + (p – 1)D = a\xa0............(1)qth term = b{tex}\\Rightarrow {/tex}\xa0A + (q - 1) D = b ......... (2)rth term = c .......... Given{tex}\\Rightarrow {/tex}\xa0A + (r - 1) D = c ........ (3)Multiplying equations (1), (2) and (3) by q - r, r - p and p - q respecitvely, we geta(q - r) + b(r - p) + c(p - q)= [A + (p - 1) D] (q - r) + [A + (q - 1)D] (r - p) + [A + (r - 1) D] (p - q)]= A [q - r + r - p + p - q] + D [(p - q)\xa0(q - r) + (q\xa0- 1) (r- p) + (r - 1) (p - q)]= A (0) + D(0)= 0 | |
| 13202. |
Hiii koyi btao math ki tayari kaysay kary |
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Answer» Haaaa oh mujhko bhi pta hai Abe maine to likh kar kri book se pgl.. |
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| 13203. |
Which books should i refer to bring very nice marks in mathematics? |
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Answer» Oswal sample paper NCERT IS THE BEST Rd sharma is best rd sharma Ncert You should have rd sharma or rs aggarwal Rd |
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| 13204. |
3-3×6+2=! |
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Answer» -17 First multiplication 3-18+2Then addition or subtraction 3-20 =-17 First multiplication then addition and at last subtraction or addition -13 according to BODMAS -11 ACCORDING TO BODMAS RULE -13 It is so simple Hi |
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| 13205. |
3-3×6+2 |
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Answer» How it will come -13 -13 is correct -17 hoga -11 |
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| 13206. |
If tan 1 |
| Answer» What are you asking man | |
| 13207. |
App guarenty dete hai ke ise me se phasenge question board me |
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Answer» Its not fully true Nahi Nhi bhai... |
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| 13208. |
Prove that √2 is irrational number |
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Answer» Check it out from ncert book Theorem 1.4 Ncrt mai example hai dekh le vaha se |
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| 13209. |
Which topic is not going to come for the exam or not required to be read??? |
| Answer» Yar aise koi topics nahi hai sab kuch padna hoga | |
| 13210. |
Either fit marks are added in percentage or not? |
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Answer» Marks obtained in Foundation of Information Technology. What are fit marks? |
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| 13211. |
Fit marks are added in percentage or not added ? |
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Answer» foundation of Information Technology marks What are fit marks? |
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| 13212. |
Kitne chapters kar liye sabne abhi tk? |
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Answer» I am done with 1st chapter..... But statistics and surface.... Volume sucks... Stats nd 1 nd 2 chapter 4 Kitne? Wow... kounse chapter? Maine v jyada nhi padha h 3 Aap? 0 |
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| 13213. |
Pathagoras theorem |
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Answer» Bhai app mai hai to sahi dekh le H =√P^2+B^2 |
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| 13214. |
if sin2 theta=1 find the value of tan theta+ cot theta pls ans bta do............ |
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Answer» Answer 1 hai No Ans is 2 not 1 Sin2 theta is = 1 ,we can also write it as sin2 theta = sin 90 qki 1 = sin 90 ......ab sin 2 theta ko 90 k equal rakhkar solve kardo .....theta ki value aa jayegi then tan theta + cot theta me put kark answer aa jayega Kaise Listen answer is 1. Ans nhi to kam se kam method to bta do kaise hoga |
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| 13215. |
Prove that 7√3 is irrational number??? |
| Answer» Let 7√3 be rational number where it is in the form a/b where a & b are co primes. 7√3=a/b √3=a/7b As √3 is an irrational number there fore our assumption is wrong.Therefore,√3 is an irrational number.Hence prooved. | |
| 13216. |
If secA- tanA=√2tanA then show secA+tanA=√2secA |
| Answer» | |
| 13217. |
determine the sum first 35 terms of an Ap ì ít second tẻrm is 2 and seventh tẻrm is 22 |
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Answer» a =-2 and d is 4 2310 As a=-3 &d=5S35=2870 |
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| 13218. |
Solve the following pair of equation by substitution method.7x-15y=2 X+2y=3 |
| Answer» X=41 and y=19 | |
| 13219. |
HOW WILL WE SOLVE 48(x)2-13x-1=0..And I got x=1/3 or x=-1/16 |
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Answer» Thik se type karo Question samajh nhi a raha... Plz tell Is this correct...Plz help |
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| 13220. |
Please help me should I study from rs agrawal, rd sharma, ncert or exampler? |
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Answer» First study ncert then refer maths oswaal then u do whatever u want but l suggest u not to study from rd sharma because in our school our teacher told us to study from rd sharma Ncert examples and exercise is the best First of all ncert because 60% paper will be from ncert with examples |
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| 13221. |
How to find mean by step deviation method if h varies |
| Answer» | |
| 13222. |
How do find step deviation method |
| Answer» See in NCERT pg no. 266 | |
| 13223. |
Is 7/25 a terminating or non terminating numbrr? |
| Answer» Its terminating... because by prime factoring the denominater 25, we get 5×5. | |
| 13224. |
If I done only ncert (full) so what can I except marks |
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Answer» Above 65 But 80 ka to exam hi hona h to more than 80 kase more than 80 if you know concept 55+ I don\'t know because Maine math ka paper nahi banaya |
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| 13225. |
Formula for find cubic polynomial ? |
| Answer» x3 -(alpha+beta)x2+(alpha beta+ beta gamma + gaama alpha)x-(alphabetagammA)=0 | |
| 13226. |
Sab vesa hi h |
| Answer» | |
| 13227. |
How many chapters you had prepar |
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Answer» Only 1?? Not even one ?????? |
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| 13228. |
Chapter 12,3 |
| Answer» | |
| 13229. |
5 is irrational number |
| Answer» No , 5 is rational bcuz it can be written in the form of p/qi.e. =5/1 | |
| 13230. |
Chapter wise valuation for 10 board exam 2018 |
| Answer» | |
| 13231. |
(a+ b)cube =? |
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Answer» a³+b³+3ab(a+b) or a³+b³+3a²b+3ab² a cube plus 3a square b plus 3ab square plus b cube.. A cube plus b cube plus 3 a square b + 3 a b square a cube +b cube+ 3a square b+3a bsquare |
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| 13232. |
3+5 root 2 is imp |
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Answer» 3 +5√2 = p/q (let it be rational number)3 +5√2 = p/q5√2 = p/q - 3√2 = p/5q - 3(√2 is irrational but p/5q - 3 is rational)So our assumption was wrong3+5√2 is irrational.Hope you understand 3 + 5√2 you want to solve this??? kya isko irrational prove krna h |
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| 13233. |
thales theorem is imp |
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Answer» Yes very very imp puch rahi hu puch rahe ho y bta rhe ho |
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| 13234. |
Is the 5x².+ 3x - 7 linear equation? |
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Answer» it is in form of ax² + bx + c So it is quadratic equationLinear equation is ax + by + cHope you understand It is quadratic eq. |
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| 13235. |
2*3 |
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Answer» tb to main fail Agar itna lengthy sum paper me aa gaya to ?? ???? Out of NCERT Very tough instead a IIT Student can not do this.. i need a calculator... |
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| 13236. |
5t+12t+7 |
| Answer» Ye bhi nhi aata | |
| 13237. |
If hcf of 408 and 1032 is expressible in the form 1032m--408*5,find m |
| Answer» M=2 | |
| 13238. |
Factorise y^2+3√5y÷2-5 |
| Answer» y^2(y^2+15) | |
| 13239. |
If (x+a) is a factor of 2x sq +2ax +5x + 10 ,find a |
| Answer» Given,2x2 + 2ax + 5x + 10Factor = (x + a)Now by using factor theoram we get,f( – a) = 2a2 – 2a2 – 5a + 10 = 0– 5a + 10 = 0a = 2Therefore the value of a = 2. | |
| 13240. |
(tan20°/cosec70°)×2 +(cot20°/sec70°) |
| Answer» | |
| 13241. |
The sum of two number is 33 and their differences is 17.find the numbers |
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Answer» x=25 ,y=8 X=25 and Y=8 |
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| 13242. |
If ratio of an Ap of a5&a3 is 2:5 than find ratio of a15&a7 |
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Answer» How did u got answer Answer is 13:1 , if i am correct. |
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| 13243. |
Yar ye 2.1 ke parabola etc. Ko deeply padhna jaroori h? |
| Answer» Ya it can also come | |
| 13244. |
Are you done only ncert |
| Answer» No | |
| 13245. |
Why 5*7*11+7 is composite no. |
| Answer» Take 7 common and then you would come to know why | |
| 13246. |
Find the value of : cos2 25 + cos2 65 |
| Answer» 1 | |
| 13247. |
I have done all my maths preparation .Have u also done???? |
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Answer» Sab bol to aise rahe ho jaise sach me kar Liya ho 8 times ??? I have done infinite times 10 times I have done 2 times? My 2 chap are left I have almost done all my preparation during preboards and now just done the whole ncert again... Pr yek hi din me Kise Jr Liya Pura preparation Noo |
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| 13248. |
If angle A and B are acute angles such that cosA =cosB ,then show that angle A=B |
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Answer» Sol: »CosA=cosB»CosA/cos=B. :(Cos/cos cancel(cut))»A=B hence proved Ncert example of ch 8 check from there |
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| 13249. |
how can use euclid divison lemma |
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Answer» Jaise toothpaste use krte ho a=bq+r |
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| 13250. |
which chapter will not come in exam please reply it |
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Answer» Jo traffic me fs gya hoga wo nhi aayega all chapters are coming |
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