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Q176. Which of the following is a valid formula for cos(2θ)?

Mathematics — Trignometry — Question 176 of 479

A. (1 - tan2θ) / (1 + tan2θ)
B. 1 - 2sin2θ
C. Both A and B
D. None of these

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Which of the following is a valid formula for cos(2θ)? | Mathematics MCQ #176 | Examora | Examora