Question

T17 = -96 & d = -7 then find first term.

Answer 1

Given,

T17= -96

d= -7

Again,

we know that,

T17 = a + (n-1)d

=> -96 = a + (17-1) -7. { since, T17 = -96]

=> -96 = a+ 16 ×(-17)

=> -96= a -272

=> -96 + 272 = a

=> 176 = a

=> a = 176