Prove that (3-4 sin^2a). (1-tan^2a)=(3-tan^2a) (4 cos^2a-3)

How do you solving the solution of each system using elimination?

How do i multiply two digit numbers

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.