(A) Prove that \frac{ \sin A-2 \sin ^3 A}{2 \cos ^3 A-\cos ...

CBSE Class 10 Math 2023 Delhi Set-1 Solved Paper

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Question : 29 of 38

Marks: +1, -0

(A) Prove that ‌

sin‌A−2sin‌3A

2cos3A−cos‌A

=tan‌A
OR
(B) Prove that secA(1−sin‌A)( secA+tan‌A)=1.

Solution: 👈: Video Solution

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