Answer:

Step-by-step explanation:

Surface Area of cube = 6× (side)^2 = 6×8×8 = 384 mm^2
HOPE THIS WILL HELP YOU
[8x-2y]+[3x-4y]
=8x+3x-2y-4y
=11x-6y
I believe the answer is cos^2 theta. Sec^2 theta on the right side of the equation is the inverse of Cos^2 theta, so multiplying the two together will get you 1. Cos^2 theta * Tan^2 theta = Sin^2 theta, and Cos^2 theta * 1 = Cos^2 theta. This all leads to the third and last step in the picture above.