Show that the equations 2 cos x = 4 sec x - 5 tan x may be rearranged as 5 sin x = 4 - 2 cos^2 x

squares, rhombus, rectangles

you can't solve x because it is 2 linear equation and you only have one equation

its an acute right triangle

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.