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Manipal MET2016MathematicsTrigonometric Ratios & Identities

The period of the function f(x)= 8 x x- 6 x 3 x 2 x x- 3 x 4 x is

Options

  1. A2
  2. B2
  3. CNone of these

Correct answer

C. None of these

Step-by-step solution

aligned & f(x)= 2 8 x x-2 6 x 3 x 2 2 x x-2 3 x 4 x & = ( 9 x+ 7 x)-( 9 x+ 3 x) ( 3 x+ x)+( 7 x- x) aligned = 7 x- 3 x 7 x+ 3 x = 2 5 x 2 x 2 2 x 5 x = 2 x Period of f(x)= 2

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