Math, asked by kmathew20112005, 9 months ago

3. Prove that:
(sec A+ tan A) (1-sin A) = cos A
what is the answer​

Answers

Answered by Anonymous
0

Step-by-step explanation:

see the attachment....

Attachments:
Answered by BrainlyIAS
1

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Answer:

LHS\\\\=>(secA+tanA)(1-sinA)\\\\=>(\frac{1}{cosA}+\frac{sinA}{cosA} ).(1-sinA) )\\\\=>\frac{(1+sinA)}{cosA}.(1-sinA) \\\\=>\frac{1-sin^2A}{cosA} \\\\=>\frac{cos^2A}{cosA} \\\\=>cosA\\\\=>RHS\\\\Hence.Proved

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