Cosxsinx-2cosx=0 I dont know how to solve this

1 answer:

8 0

Factor out cosx: cosx(sinx-2)=0
cosx=0 or sinx-2=0
cosx=0 or sinx=2
the largest value of sinx is 1, sinx will never be 2, so cosx=0, x=π/2 or 3π/2 are the two answers.

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Part b 1240 unit²

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Part a.

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