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AP EAMCET2007MathematicsTrigonometric Ratios & Identities

80^ - 10^ 70^ is equal to

Options

  1. A0
  2. B1
  3. C2
  4. D3

Correct answer

C. 2

Step-by-step solution

Now, 80^ - 10^ 70^ aligned & = 80^ - 10^ (80^ -10^ ) & = 80^ - 10^ 80^ - 10^ (1+ 80^ 10^ ) & =1+ 80^ 10^ & =2 aligned

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