Question

For an AP if TN = 4 n= 7 , d= -4 then ,a =?​

Answer 1

Answer:

Tn = 4

n=7

d=-7

Tn = a + ( n-1 ) d

4 = a + (7-1) - 7

4 = a + 6 × (-7)

4 = a + (- 42)

4 + 42 = a

46 = a ANSWER