Me! different forms of slope-intercept form 8x + 4y = 12 (standard form)

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.

The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?