Question

Find the 21 the termite the A.p-9/2,-3,-3/2

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

Here n=21

t1=a=-9/2

t2=-3

t3=-3/2

d=t2-t1= -3-(-9/2)=3/2

Step-by-step explanation:

Now,

By using formula

tn = a+(n-1)d

t21=-9/2+(21-1)3/2

=51/2

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