Math, asked by shaileshkadam9599, 2 months ago

find the 21st term of the A.p 3,7,11,15....

Answers

Answered by AmanBhandari0707

3

Answer:

83

Step-by-step explanation:

By formula

a=3

d=4

Tn= 21

so

Tn = a+(n-1)d

= 3+(21-1)4

= 3+20×4

= 3+80

=83

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