Solve. i need asap e- 7/5/6 = 6/1/2

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

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.