Question

If x is equal to a sin a and y is equal to a cos a then find the value of x square + y square

Answer 1

Sin2A+cos2a is always 1

Answer 2

Answer:

hi mate here's ur answer.

answer=1

Step-by-step explanation: x=sin A     y=cosA

therefore x2+y2   =   (sin A)2 + (cos A)2

                                   =   sin2A + cos2A

                                    =   1 (using the identity)

hope this helps u.....

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