Which of the following is an identity for csc(A + B) ? secAsecB cot A+cot B cscAcscB tan A+tan B secAsecB tan Atan B cscAcscB cot A +cot B Use the information given about the angle 0, 0 0 2n, to find the exact value of the indicated trigonometric function. = tan 0-0 Find cos(20). 625 2/3 2/2/3 Suppose that the x-intercepts of the graph of y = f(x) are 7 and 4. What are the x- intercepts of y=f(x+3)? 10 and 7 21 and 12 4 and 1 7 and 7