Subject: Maths, asked on 26/3/18

## In this question -> How many terms of an AP: 9,17,25......must be taken to give a sum of 636 . I know how to solve it but the problem arises when I reach this step -> 4n2​+5n-636=0 ; I know how to factorize but its diffcult to find the factors of large number like this. So kindly help and explain to how to find factors easily for these kind of sums and also using quadratic wont do any good , both methods take time .

Subject: Maths, asked on 26/3/18

## Pls... solve.... 22. The sum of first n terms of an AP is 3n2+4n. Find the 25th term of this AP. Solution :

Subject: Maths, asked on 26/3/18

## for what value of k will 3k+2 , 4k+5 and 6k-4 will form an AP?? NO LINKS PLZZZ...ANSWER IT AS SOON AS POSSIBLE

Subject: Maths, asked on 26/3/18

## The angles of a triangle are in A.P .If the greatest angle is equal to sum of other two ,find the angles . No links pls !! Answer soon!!( Using ap)

Subject: Maths, asked on 26/3/18

## plz answer .. TOO CONFUSING.!!

Subject: Maths, asked on 26/3/18

## Solve this: Q.2. If the common difference of an A.P. is 3, then ${a}_{20}-{a}_{15}$ is (A) 5 (B) 3 (C) 15 (D) 20

Subject: Maths, asked on 26/3/18

## Solve it.

Subject: Maths, asked on 26/3/18

## Solve this: ​Q28. If pth , qth and rth term of an A.P. are a, b, c respectively, then show that                 a(q – r) + b(r – p) + c (p – q) = 0.

Subject: Maths, asked on 26/3/18

## Q. Check graphically whether the pair of equations x+y $\equiv$ 8 and x - 2y $\equiv$2 is consistent. If so, solve them graphically. Also find the coordinates of the points where the two lines meet the y-axis.

Subject: Maths, asked on 26/3/18

## Solve this: Q. In an AP, terms are respectively a, b and c. Prove that p (b - c) + q (c - a) + r (a - b) = 0

Subject: Maths, asked on 26/3/18

## Q. Prove that : $se{c}^{2}\theta +\mathrm{cos}e{c}^{2}\theta =se{c}^{2}\theta .\mathrm{cos}e{c}^{2}\theta$

Subject: Maths, asked on 26/3/18

## Solve this: Q.8. The ${11}^{th}$ term of an AP. exceeds its ${4}^{th}$ term by 14. Find the common difference.

Subject: Maths, asked on 25/3/18

## Q. Find the sum of n terms of the series $\left(4-\frac{1}{n}\right)+\left(4-\frac{2}{n}\right)+\left(4-\frac{3}{n}\right)+....$

Subject: Maths, asked on 25/3/18

## Q3 3.  ​Find the eleventh term from the last term of the AP :

Subject: Maths, asked on 25/3/18

## Q24. Is k=12? In Meritnation answer key, it's given k=6! (Top 100 Que) Q.24. For what value of k will the consecutive terms 3k + 2, 4k + 5 and 6k - 4 form an AP?

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