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Question
Write an A.P. whose first term is a and common difference is d in the following.
Solution
a = –7, d = `1/2`
t1 = a = –7
t2 = a + d = `-7 + 1/2 = (-14 + 1)/2 = (-13)/2`
t3 = a + 2d = `-7 + 2(1/2)` = –7 + 1 = –6
t4 = a + 3d = `-7 + 3(1/2) = -7 + 3/2 = (-14 + 3)/2 = (-11)/2`
∴ A.P. is `-7, (-13)/2, -6, (-11)/2 .......`
∴ A.P. is –7, –6.5, –6, –5.5 ........
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