Determine the sine, cosine, and tangent of the angle.

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

Someone me! if you’re smart you can solve this!

Which expression is equivalent to 64 - 9x^2?