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

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Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

Ahighway between points a and b has been closed for repairs. an alternative route between there two locations is to travel between a and c and then from c to b what is the value of y and what is the total distance from a to c to b?