Trigonometric Equation Problem

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alliesmith

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Dec 23, 2020
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Hello, if someone could send advice on how to reach the solution to this problem I would be extremely grateful.

Solve the equation sin(2x-0.35) = cos(3x) where 0 ≤ x ≤ π.
I have tried converting the 0.35 into radians and solving it using double angle identities to no avail. I have also attempted to use arcsin and arccos but they have led me nowhere. Any advice would be appreciated. Thank you.
 
alliesmith said:
Hello, if someone could send advice on how to reach the solution to this problem I would be extremely grateful.

Solve the equation sin(2x-0.35) = cos(3x) where 0 ≤ x ≤ π.
I have tried converting the 0.35 into radians and solving it using double angle identities to no avail. I have also attempted to use arcsin and arccos but they have led me nowhere. Any advice would be appreciated. Thank you.
Click to expand...
In these types of problems, radian is the default "unit" for measure of angles. So you don't need to convert it.

Are you expected to use numerical method or graphical method to estimate the solution?
 
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