Math, asked by imemanha, 7 months ago

If 18, a , b, -3 are in AP, then a+b =

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Answered by TanmayKiranUrunkar

4

Answer:

as 18, a, b, -3 are in a.p.

t1=18

t4=t1+(n-1)d

-3=18+3d

3d= -21

d= -7

a=t1+d

a=18-7=11

b=t2+d=a+d=11-7=4

a+b=11+4=15

Answered by temporarygirl

0

Hola mate

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