- #1
Saitama
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- 93
Homework Statement
##\forall x \in R##, find the range of function, ##f(x)=\cos x(\sin x+\sqrt{\sin^2x+\sin^2\alpha})##; ##\alpha \in [0,\pi]##.
Homework Equations
The Attempt at a Solution
Honestly, I cannot think of how to approach this problem. I don't see how would I simplify the given expression. I require a few hints to start with.
Any help is appreciated. Thanks!