Pls help asap pls. This is T/F

a) y = 2cos -x) has two different tangents with a slope of 1 every cycle. b) The derivative of an exponential function is an exponential function. C) The nth derivative of y = aek* will always be anknekx d) The nth derivative of y = asin(kx) is y(") = khasin (kx) e ) Every successive derivative of y = asin (kx ) is sinusoidal. f) . As x increases, the graph of y = e* is steeper than y = 2.5x g) Another way of expressing nloge x is In x