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In an A.P, first two terms are -3, 4, th...

In an A.P, first two terms are `-3`, `4`, then 21st term is……….a)`-143` b)`143` c)`131` d)`137`

A

`-143`

B

143

C

137

D

17

Text Solution

Verified by Experts

The correct Answer is:
C
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