Math, asked by manvithsjokatte, 6 months ago

if 18, a, b, -3 are in AP, thn find a+b​

Answers

Answered by Anonymous
4

Answer:

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Answered by harshit7037
1

Answer:

15

Step-by-step explanation:

  • A=18,
  • A4=-3
  • A+3D=-3
  • 18+3D=-3
  • 3D=-3-18
  • 3D=-21
  • D=-7

a=A+D

a=18-7

a=11

b=A+2D

b=18+2(-7)

b=18-14

b=4

then, a+b=11+4 =15

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