Question

Find the first four terms of an AP whose first term = - 2 and comman differnce = -2

Answer 1

Common difference = 2

First term = a = -2

Second term = a + d = -2 + ( -2) = -4

Third term = a + 2d = -2 + 2 ( -2) = -6

Fourth term = a + 3 d = -2 + 3(-2)= -8

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Answer 2

First term = - 2 and common difference = -2

a1= – 2,

a2 = a1 + d = – 2 + (– 2) = – 4

a3 = a2 + d = – 4 + (– 2) = – 6

a4 = a3 + d = – 6 + (– 2) = – 8

First four terms are – 2, – 4, – 6, – 8