Is there any trinomial antonyms.

Evaluate cos2θ for cosθ = square root of 3/2

Apolice office claims that the proportion of people wearing seat belts is less than 65%. to test this claim, a random sample of 200 drivers is taken and its determined that 126 people are wearing seat belts. the following is the setup for this hypothesis test: h0: p=0.65 ha: p< 0.65 find the p-value for this hypothesis test for a proportion and round your answer to 3 decimal places.

Multiply the polynomials (x+3)(x^2-6x+5)