NDA Math Trigonometric Ratios of Angles and Equations Part 2
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Question : 13 of 75
Marks:
+1,
-0
If tan ( 45 ∘ + θ ) = 1 + sin 2 θ , where −
< θ <
, then what is the value of cos 2 θ ?
[NDA-I 2022]
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