Math, asked by haljordan05, 4 months ago

prove , cos.cot/1+sin=cosec-1

Answers

Answered by Priyanshulohani

0

Answer:

LHS :

1+sinA

cosA

+

cosA

1+sinA

=

(1+sinA)(cosA)

cos

2

A+(1+sinA)

2

=

(1+sinA)(cosA)

1+sin

2

A+cos

2

A+2sinA

=

(1+sinA)(cosA)

2+2sinA

=

(1+sinA)(cosA)

2(1+sinA)

=

cosA

2

=2secA

=RHS

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