Question

THE FRIST TERM OF AN A.P IS EQUAL TO TWICE THE COMMON DIFFERENCE D FIND IN TERM OF D THE 5TH TERM OF THE A.P

Answer 1

The frist term of an A.P is equal to twice the common difference d mean:

a1 = 2 d

nth term of the A.P:

an = a1 + ( n - 1 ) d


a5 = a1 + ( 5 - 1 ) d

a5 = a1 + 4 d

Since a1 = 2 d

a5 = a1 + 4 d = 2 d + 4 d = 6 d

a5 = 6 d

Answer 2

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Answer 3

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Answer 4

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Answer 5

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