Problem

Solve exactly for x for 720x900.
cos3x+cosxsin2x=sinx

Answer

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Answer

Final Answer: The solution to the equation cos3x+cosxsin2x=sinx for 4πx5π is x=17π4.

Steps

Step 1 :The given equation is in terms of trigonometric functions. We can simplify the equation by using the Pythagorean identity sin2x+cos2x=1.

Step 2 :We can also convert the given range of x from degrees to radians because trigonometric functions use radians. The range 720x900 is equivalent to 4πx5π in radians.

Step 3 :Let's solve the equation sin(x)2cos(x)sin(x)+cos(x)3=0 for x.

Step 4 :The solution to the equation is x=17π4.

Step 5 :Final Answer: The solution to the equation cos3x+cosxsin2x=sinx for 4πx5π is x=17π4.

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