Question

4) For an A-P, if t = 4, d=-4, then a = ------
A) 6
B) 7
C) 20
D) 28​

Answer 1

Answer:

a= 28

given values are

d= -4

t7=4

a=?

by putting the value

t7=4, n=7, d=-4

t7= a+(7-1) (-4)

4= a-24

a= 4+24

a=28

Step-by-step explanation:

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