Question

For an A.p. if tn=4, n=7,d=-4 find a?​

Answer 1

Answer:

a = 28

Step-by-step explanation:

tn,an = 4

an = a+(n-1)d

A7 = a+(7-1)-4

4= a -24

a = 28

Answer 2

Answer:

tn=a+(n-1)d

4=a+(7-1)-4

4=a+(6)-4

4=a-24

4+24=a

28=a

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