Trigonometry double angle formula SAT Subject test Math level 2
Which of the following is the value of given that ?
(A)
(B)
(C)
(D)
(E)
Thanks!:o
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Trigonometry double angle formula SAT Subject test Math level 2
Which of the following is the value of given that ?
(A)
(B)
(C)
(D)
(E)
Thanks!:o
The double angle formula is given by
So, .
Finally the required value is
Therefore the correct answer is (E).
Thank you!