1.

If 10 times the 10th term of an ap is equal to 18 time 18term find 22 term​

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Answer:

10(A10) = 18(a18)

10(a+9d) = 18(a+17d)

10a+90d = 18a+306d

10a-18a = 306d-90d

-8a = 216d

-a = 216d/8

-a = 27 d

a = -27d

a22 = a + 21 d

a22 = -27d+21d

a22 = -6D



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