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MHT CET202020 Oct 2020Morning ShiftMathematicsTrigonometric Ratios & IdentitiesActual

If + =4 , then ⁴ + ⁴ =

Options

  1. A194
  2. B110
  3. C80
  4. D191

Correct answer

A. 194

Step-by-step solution

+ =4 On squaring both side, we get ² + ² +2 =16 ² + ² =14 On squaring both side, we get array l ⁴ + ⁴ +2 ² ² =196 ⁴ + ⁴ =196-2=194 array

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