Question

which term of Ap will be 707 if ap=21,28,35,......​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

a1=21

a2=28

so,d=28-21=7

an=f+(n-1)d

=21+(n-1)7

=21+7n-7

=14+7n

14+7n=707

7n=707-14

n=693/7

n=99

so,

99th term of this ap is 707...