Which situation could be solved using the equation-4+4=0

Which of the following is true for the relation f(x)=2x^2+1

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3