M K CLASSES NBD

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PYQ chapter 5 AP

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Find the 60th term of AP 8, 10, 12..... if it has total 60 terms then find the sum of last ten terms

If Sn denotes the sum of first n terms of an ap then prove that s_30 = 3(S_20 - S_10).

If the sum of first n terms of an ap is 1/2 (3n²+7n) then find its nth and 20th term.

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Find the middle most term of the AP 6, 13, 20, ...... 216.

If pth qth and rth term of an ap are a b and C respectively. Then prove that a(q-r)+b(r-p)+c(p-q)=0

If the 4th term of an AP is zero, then prove that 25th term of same AP is 3 times of the 11th term

For what value of k, k+9, 2k-1, 2k+7 are three consecutive terms of an AP.

How many terms of the AP 18, 16, 14, ......... be taken so that their sum is zero?

Exercise 5.3 Q No 19 NCERT

Exercise 5.3 Q No 18 NCERT

Exercise 5.3 Q No 17 NCERT

Exercise 5.3 Q No 16 NCERT

Exercise 5.3 Q No 14 NCERT

Exercise 5.3 Q No 15 NCERT

Exercise 5.3 Q No 13 NCERT

Exercise 5.3 Q No 12 NCERT

Exercise 5.3 Q No 11 NCERT

Exercise 5.3 Q No 10 NCERT

Exercise 5.3 Q No 9 NCERT

How can explain factorial notation

Find the sum of first 22 terms of an AP in which d= 7 and 22nd term is 149.Exercise 5.3 Q No 7 NCERT

Exercise 5.3 Q No 20 NCERT

Find the sum of first 51 terms of AP whose second and third terms are 14 and 18. Exercise 5.3 Q No 8

The first and the last terms of an AP are 17 and 350 respectively. Exercise 5.3 Q No 6 NCERT

First term of AP is 5, last term is 45 and the sum is 400. Find number of terms. Exercise 5.3 Q No 5