Math, asked by Nandanshinganalli, 1 month ago

9 Find the sum of 3+6+9,,,,,,, up to 10 terms​

Answers

Answered by auragen2030
1

the answer of this question is 165

Answered by aparna4738
1

Answer:

165

Step-by-step explanation:

s = n \2(2a + (n - 1)d)  \\ n = 10 \\ a = 3 \\ d = 6 - 3 = 3 \\ s = 10 \2(2 \times 3 + (10 - 1)3) \\  = 5(6 + 27) \\  \\  = 165

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