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Eamcet Mathematics
Trigonometry Transformations

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cos(α + β + γ) + cos(α – β – γ) + cos(β – γ – α) + cos(γ – α – β) =

A. 2 cosα cos β cos γ

B. 3 cosα cos β cos γ

C. 4 cosα cos β cos γ

D. 6 cosα cos β cos γ

E. None of the above

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Correct choice: C

Explanation:

None

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Eamcet Mathematics Trigonometry Transformations

Eamcet Mathematics
Trigonometry Transformations