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    What is the value of sin`theta` cos (90° - 9) + cos`theta` 9 sin (90° - 9)?

    1 ANSWERS


    • sin `theta` cos (90° - `theta` ) + cos`theta` sin (90° - `theta` )


       


      = sin `theta` . sin `theta` ` ` + cos `theta` . cos `theta`


       


      = sin2 `theta` + cos2  `theta`


       


      = 1


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