2. Find A.P which fifth terms are 5 and common difference is -3.
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Answer:
A5 = a + 4d = a + 4(-3)
5 = a - 12
a = 5+12
a = 17
A2 = a+d = 17 - 3 = 14
A3 = a + 2d = 17 - 6 = 11
A4 = a + 3d = 17 - 9 = 8
AP = 17, 14, 11, 8,.......
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