Question

If for an A.P , t₂=4 and d= -2, then what the value of a​

Answer 1

Step-by-step explanation:

a2= a +(2-1)(-2)

4 = a+(1)(-2)

4 = a-2

6 = a

Answer 2

$t2 = 4 \\ a + d = t2 \\ a + ( - 2) = 4 \\ a = 6$