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COMEDK2017MathematicsTrigonometric Ratios & Identities

The value of (35^ +A ) (35^ -B )+ (35^ +A ) (35^ -B ) is equal to

Options

  1. A(A+B)
  2. B(A-B)
  3. C(A+B)
  4. D(A-B)

Correct answer

C. (A+B)

Step-by-step solution

(35^ +A ) (35^ -B ) + (35^ +A ) (35^ -B )= [ (35^ +A )- (35^ -B ) ]= (A+B)

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