** best answer gets brainliest! ** using a number line, find both the intersection and the union of the following intervals:
a) (−3, +∞) and (4, +∞)
b) (−∞, 2) and [0, +∞)
c) (−∞, 6) and (−∞, 9)
d) [1, 5] and (0, 8]

A) find the derivative of the inverse to f(x) = 3x + sint at x 6. b) (cale) find the derivative of the inverse to f(x)+3sin at x 6. if x +2y -34, ind he behaviar of the cure at 4,.3), c) a. increasing, concave up d. decreasing, concave down b. increasing, concave down e. decreasing, inflection point c. decreasing, concave up