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How to solve this?With solutions

How to solve this?With solutions-example-1
User Gerdemb
by
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1 Answer

6 votes

Answer:

C

Explanation:

Step 1: Determine the value of x by using
x=tan^(-1)((√(3) )/(√(2)) )


x=tan^(-1)((√(3))/(√(2) ))=50.7685 degrees

Step 2: Substitute x=50.7685 degrees into the original equation


2cos^(4)(x)-sin(x)=2cos^(4) (50.7685)-sin(50.7685)=0.320-0.7746=-0.4546

User Farzadshbfn
by
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