Find all solutions to the equation. cos x = -1/2

What is the range? can’t seem to find it out

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Will give let f(x)=2x and g(x)=[tex]2^{x}[/tex] graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ? enter your answers in the boxes x=[? ] or x=[? ]