Pre Calc Help Please:) If you could answer any of these that would be great! 1) What domain restrictions are there on a radical function.
2)What is an example of removable discontinuity?
3)What is an example of non-removable discontinuity?

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

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

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by