Question

the first four term of an ap if a=-7,and d=3​

Answer 1

The first term:

$a \: = - 7$

The second term:

$a + d \: = - 7 + 3 = - 4$

The third term:

$a + 2d \: = - 7 + 2(3) = - 1$

The fourth term:

$a + 3d \: = - 7 + 3(3) = 2$