Question

find the sum of the A.P 2,7,12,............to 5 terms​

Answer 1

Answer:

s5=5/2{2(2) +(5-1) (5) }

=5/2(24)

=60

Answer 2

Answer:

$(7) + (12) + (17) + (22) + (27) = 85$

Step-by-step explanation:

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