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NDA Math Trigonometric Ratios of Angles and Equations Part 2

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Read the following information and answer the three items that follow:
Let asin2x+bcos2x=c;bsin2y+acos2y=d and p‌tan‌x=q‌tan‌y.

[NDA-I 2020]

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Question : 58

Total: 75

What is tan2x equal to ?

c−b
a−c
a−c
c−b
c−a
c−b
c−b
c−a

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