Lim as x approaches 2pi/3 from the right of csc x, solve by substituting csc with sin

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅

Select the correct answer. which exponential function has an x-intercept? oa. (x) - 100x-5-1 ob. (x) = 3x4+2 oc. kx) = 7x-1 + 1 od. 1(x) =-3x+1 - 3