SOLUTION: can you help me with this problem cosxsinx - 2cosx = 0

SOLUTION: can you help me with this problem cosxsinx - 2cosx = 0

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Question 949475: can you help me with this problem
cosxsinx - 2cosx = 0
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!

cosxsinx - 2cosx = 0
cosx(sinx-2)=0 divide each side by cosx
sinx-2=0 Subtract 2 from each side
sinx=2 No solution: sine of an angle cannot be greater than 1 because the length of a leg of a right triangle cannot be greater than the hypotenuse

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