Math, asked by mdjahidm12e, 6 hours ago

✓secA-1/secA+1 =cosecA

Answers

Answered by Aayush11133

2

i hope it helps

Step-by-step explanation:

LHS=

secA−1

1

+

secA+1

1

=

cosA

1

−1

1

+

cosA

1

+1

1

=

1−cosA

cosA

+

1+cosA

cosA

=cosA(

1−cos

2

A

1+cosA+1−cosA

)

=2cosA×

sin

2

A

1

=2×

sinA

cosA

×

sinA

1

=

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