If the nth term of an AP is (2n+1) then the sum of its first three terms is..??
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6
first term is 3 nd second term is 5 nd third term is 7 ....so final answer is 15
Jigyasa25:
How..?
In the 2n+1 .... substitute 1,2,3 in place of 'n'...so as to get 1st term, 2nd term ,3rd term.....and add them
Thanks I got it.
Answered by
11
this is the required answer s3 =15
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