Asked by  | 27th Jan, 2009, 09:19: PM

Expert Answer:


 [as cos(-x)=cosx]

This shows that  the two angles must be complementary (when sinx=cosy , x and y are complementary angles)


Solve, to get the value of x.

The first part of the question is not clear.Pl send it again.

Answered by  | 27th Jan, 2009, 10:15: PM

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