Sec x = -11/5 [a] Find cos(−x) .
[b]Find the reference angle for x in radians.
Round your answer to 4 decimal places.
[c] If 0 ≤ x < 2pi , find all possible values of x in radians
[d] Using identities find all possible values of cot x

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl