Question

answer please fast..​

Answer 1

Given

An = 7 - 2n

putting n = 1

A1 = 7- 2(1) = 5

putting n = 2

A2 = 7 - 4 = 3

DIFFERENCE = A2 - A1 = 3 - 5 = -2

DIFFERENCE = -2

we just have to put value of n ( 1 and 2) and then two terms that is second and first term will come.

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Answer 2

Answer:

i hope it will help you

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