(iv)

sin A

1- cos A

cosec A + cot A.

please prove this using trigonometric identities

i will mark the most appropriate one brainliest

sin A

1- cos A

cosec A + cot A.

please prove this using trigonometric identities

i will mark t

(iv)

sin A

1- cos A

cosec A + cot A.

please prove this using trigonometric identities

i will mark the most appropriate one brainliest

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Answer:We need to prove

1+cosA

1−cosA

=cosecA−cotA

By taking L.H.S. =

1+cosA

1−cosA

=

1+cosA

1−cosA

×

1−cosA

1−cosA

=

1−cos

2

A

(1−cosA)

2

=

sin

2

A

(1−cosA)

2

=

sinA

1−cosA

=

sinA

1

−

sinA

cosA

=cosecA−cotA= R.H.S.

Hence, proved