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Verify each trigonometric identity by simplifying the trigonometric expression on one side of the identity to match the other side of the identity.

 

 

 

 

 

sin(90°- 0)csc(-0)=-cot 0

 Apr 21, 2021
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Using A,  we have

 

sin (90 - A)  * csc (-A)                  Note  that  sin (90 - A)  = cos A

 

cos A  *  csc ( -A)  =

 

cos A  *   1 / sin (-A)                     Note  that  sin (-A) = -sin A

 

cos A  / - sin A   =

 

-cos A / sin A  =

 

-cot A

 

cool cool cool

 Apr 21, 2021

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