Question

prove LHS is equal to rhs​

Answer 1

Answer: UR REQUIRED ANSWER ;-

LHS , TERM .

[cos A/1 -tan A ] - [sin²A / cos A -sin A ]

REMEMBER ⇒ tan A = sin A / cos A

⇒ [cos A / 1 - (sin A / cos A )] -  [ sin ² A / cos A - sin A ]

⇒ [cos A ×  cos A / cos A - sin A ] - [ sin ²A / cos A  - sin A ]

⇒ cos ² A  - sin ² A / cos A - sin A

⇒ ( cos A - sin A ) ( cos A + sin A ) / cos A - sin A

⇒ cos A + sin A  

⇒ LHS = RHS  ....

HENCE PROVED ..

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