Sin^2(x)-cos^2(x)=0
find all the solutions in the interval [0,2pi)
plz .

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2