Follame papi por favor oh Dios mio papi follame

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

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.

Based on the diagrams, what is the value of x?