Math, asked by shreya300, 1 year ago

if 18,a,b,-3 are in ap then find value of a and b

Answers

Answered by rosan2

9

A4=a+3d
A4=18+3d
-3=18+3d
-3-18=3d
d=-7

a=18+(-7)
a=18-7
a=11
b=18+2*-7
b=18-14
b=4

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