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Simplify the expression co $s^{2}$ A * cosec A - cosec A.
Which is the correct simplified form?

Class 10Trigonometric IdentitiesTrigonometry

A-sin A
Bsin A
C-cos A
Dcos A

Step-by-Step Solution

cosec A(co

s^{2} A - 1

) = cosec A(-(1 - co

s^{2}

A)) = cosec A(-si

n^{2}

A) =

\frac{1}{s i n A} (- sin^{2} A)

= -sin A.

Answer: A) -sin A

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