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A is an angle in the fourth quadrant. If satisfies the trigonometric equation 3 (3- ^2 ~A - A )^2=1 . Which one of the following is a value of A ?

Options

  1. A300^
  2. B315^
  3. C330^
  4. D345^

Correct answer

A. 300^

Step-by-step solution

Checking through options 300^ =-60^ So, 3 [3- ^2 (-60^ )- (-60^ ) ]^2=3 [3-3+ 1 3 ]^2=3 1 3 =1

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