Whats 47 plus 93? show your work and make sure to use an equation

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

What are the domain and range of the function f(x)=2^x+1

In the diagram, be and ad pass throughthe center of circle o, and the area ofsector aoc is 47.45 square units. what isthe area of sector boc? use the value =3.14, and round your answer to two decimalplaces.22.33 square units25.12 square units