Which one of the following is NOT a solution of  sinx(2cosx+1)=0 a. 7pi b. 2pi/3 c. 5pi/3 d. 8pi/3

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A: I am attaching image so that you understand each and every step.

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A: NOTE: Refresh your page if you can't see any equations. .

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A: I am attaching image so that you understand each and every step.

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