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MHT CET202019 Oct 2020Evening ShiftMathematicsTrigonometric Ratios & IdentitiesActual

If A and B are supplementary angles, then ² A 2 + ² B 2 =

Options

  1. A1
  2. B1 3
  3. C0
  4. D1 2

Correct answer

A. 1

Step-by-step solution

(C) A and B are supplementary angles. A+B=180 A=180-B A 2 =90- B 2 ² A 2 + ² B 2 = ² A 2 + ² (90- A 2 )= ² A 2 + ² ( A 2 )=1

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