Q. 4 C

Write the first four terms of the A.P. when first term a and common difference d are given as follows:

a = 10, d = 10

Answer :

Given: a = 10 and d = 10


The general form of an A.P is a, a+d, a+2d, a+3d,…


So, the first term a is 10 and the common difference d is 10, then the first four terms of the AP is


10, (10+10), (10+2×10), (10+3×10)


10, (20), (10+20), (10+30)


10, 20, 30, 40


Hence, first four terms of the A.P. is 10, 20, 30 and 40.


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