1.

In arthematic progression first two terms are -3,4 then 21 term is..​

Answer»

ong>Answer:

21 term is 137

Step-by-step EXPLANATION:

arithmetic progression is -3,4,......

a = -3

b = 4

d = b - a

= 4 - (-3)

= 4 + 3

= 7

so, a^21 = a + 20d

= -3 + 20(7)

= -3 + 140

= 137



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