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KCET2008MathematicsTrigonometric Ratios & Identities

The value of 67 1^ 2 + 67 1^ 2 is

Options

  1. A2
  2. B3 2
  3. C2 2
  4. D2- 2

Correct answer

C. 2 2

Step-by-step solution

Now, 67 1 2 + 67 1 2 aligned &= (90^ -22 1 2 ^ )+ (90^ -22 1 2 ^ ) &= 22 1 2 ^ + 22 1 2 &= 2 -1+ 2 +1 &=2 2 aligned

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