The of the complex number z=r(cos theta + i sin theta) is the angle of theta.

The rows and columns of lattice points in a three-by-three square array are evenly spaced one unit apart. how many distinct triangles with at least one side of length 2 units can be drawn using three lattice points for the vertices?

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

If square root x = -7, then x= -49 true or false