Question

In ap if the common difference is -4 anf seventh term is 4 find the first term​

Answer 1

Answer:

Hey there

an = a + (n - 1)d

4 = a + 6×(-4)

4 = a - 24

a = 28 is the first term

Hope it helps you

Please mark it as branliest

Answer 2

Answer:

a=28

Step-by-step explanation:

a7=4 ie, a+6d=4------ (i)

d= -4

sub value of 'd' in (i)

a+6(-4)=4

a-24=4

a=4+24

a= 28

therefore the first term is 28