Answers

  • Brainly User
2016-04-16T15:27:27+05:30
If they are in ap then b=(a+c)/2 2b^2=a^2+c^2+2ac 2c^2=b^2+d^2+2bd a+(a+c)/2+c +√(2c^2-b^2-2bd)
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