A) cos(2x- pi/3)= 1/ căn 3 b) ( 2sinx-3 ). cos 2x=0 c) sin 3x.( 5cosx+6)=0 d) 3sin2x- 5cos=0 e) 4sinxcosx.cos2x=-1

Deepak Raj asked Jun 20, 2022

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A) cos(2x- pi/3)= 1/ căn 3

b) ( 2sinx-3 ). cos 2x=0
c) sin 3x.( 5cosx+6)=0
d) 3sin2x- 5cos=0
e) 4sinxcosx.cos2x=-1

Deepak Raj asked Jun 20, 2022

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17 votes

It is c sin 3x(5cosx+6)=0

Rovermicrover answered Jun 27, 2022

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