1.

Determine the 36th term of the A.P. whose first two terms are -3 and 4 respectively

Answer»

A.P. : -3, 4 ........

a = -3

n = 36

d = a2 - a1

= 4 - (-3)

= 4 + 3

 = 7

Using formula, 

an =  a + (n -1)d

= -3 + (36 - 1)7

= - 3 + (35)7

= -3 + 245

= 242



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