Prove that secA - tanA.sinA
Answers
Answered by
3
Step-by-step explanation:
secA-tanAsinA
=1/cosA-sin²A/cosA
=1-sin²A/cosA
=cos²A/cosA
=cosA
Answered by
2
Solution →
LHS →
= Sec A - tan A . Sin A
We know that →
- Sin² a + Cos²a = 1
- cos²a = 1-sin²a
So ,
RHS
Hence Proved !!
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