Math, asked by manishprik807, 2 months ago

Find the number of terms of AP 3,7,11,whose sum is 210

Answers

Answered by prakhyatpandit786
1

Answer:

Sum of n terms in AP

S = n/2[2a + (n − 1) × d

Step-by-step explanation:

n is denoted no of terms . so never -ve and fraction , n≠ -21/2

only n= 10

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