tan A
-----------
sec A-1
+
tan A
--------------
sec A+ 1
= 2 cosec A
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Answered by
7
Answer:
Proof
LHS
tanA. tanA
-----------+-------------
secA-1. secA+1
tanA(secA+1)+tanA(secA-1)
=--------------------------------------------
(secA+1)(secA-1)
tanAsecA+tanA+tanAsecA-tanA
=-------------------------------------------
sec square -1
2tanASecA
=-------------------
tan squareA
2secA
=-------------
tanA
=2*1/cosA
-----------------
sinA/cosA
=2/sinA
=2cosecA
RHS
(Proved)
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