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Show that 1- tan A/1+tanA= 2 cos A-1. |
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Answer» MATHS Prove that secA+tanA 1
− cosA 1
= cosA 1
− secA−tanA 1
Rubee Dayal SHARE ANSWER According to QUESTION, secA+tanA 1
− cosA 1
= cosA 1
− secA−tanA 1
⟹ secA+tanA 1
+ secA−tanA 1
=2secA Solving LHS, |
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