Question

Find the sum of the first 22 term of the A.P 9 17 25 .....

Answer 1

Step-by-step explanation:

since , a=9,d=8,n=22,last term=x,Sum=?

S=n/2(2a+(n-1)d)

S=22/2(2*9+(22-1)8)

S=11(18+(21)8)

S=11(18+168)

S=11*186

S=2046

Hence sum of first 22 terms of the A.P with difference 8 is 2046

Answer 2

Answer:

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Step-by-step explanation:

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