Math, asked by krishnanand6002, 1 month ago

find the sum of first 20 terms of an ap

Answers

Answered by thanoojareddy

0

Answer:

we are also given that 7th term is two more than thrice of its 3rd term. Now we are supposed to find the sum of first 20 terms : Hence the sum of first 20 terms is 740.

Answered by ruchikajagtap

0

Answer:

it must be

a + 19 d

Step-by-step explanation:

and 'a' and 'd' are given in question

HÍÍ Í ÀM RÚÇHÍKÀ JÀGTÀP MÀY BÉ ÍT HÉLP YÓÚ TÓ ÛÑDÉRŞTÀÑD

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