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(iv)
sin A
1- cos A
cosec A + cot A.

please prove this using trigonometric identities
i will mark t

By Valentina

(iv)
sin A
1- cos A
cosec A + cot A.

please prove this using trigonometric identities
i will mark the most appropriate one brainliest​

About the author
Valentina

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1 thought on “(iv)<br />sin A<br />1- cos A<br />cosec A + cot A.<br /><br />please prove this using trigonometric identities<br />i will mark t”

  1. 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

    Reply

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