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MHT CET20226 Aug 2022Morning ShiftMathematicsTrigonometric Ratios & IdentitiesActual

If = a b , then b 2 +a 2 =

Options

  1. Ab
  2. Ba
  3. C0
  4. D1

Correct answer

A. b

Step-by-step solution

aligned & b 2 +a 2 =b 1- ^2 1+ ^2 +a 2 1+ ^2 & =b 1- a^2 b^2 1+ a^2 b^2 +a 2 a b 1+ a^2 b^2 & = b (b^2-a^2 ) b^2+a^2 + 2 a^2 b b^2+a^2 & = b (b^2+a^2 ) b^2+a^2 =b aligned

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