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13-09-2021
Mathematics

contestada

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

Respuesta :

s90288852 s90288852

13-09-2021

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

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