If u is a function such that u=f(x) state the formulas requested below
a. what does d/dx[sinh u] equal ?
b. what does d/dx[cosh u] equal ?
c. what does d/dx[tanh u] equal ?
d. find the derivative of the function y=sech(4x+2) using substitution. cite any formulas you use

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

нιѕ яαтє ιѕ 1/4 σя .25 ριєѕ ρєя мιиυтє

нσρє ι ¢συℓ∂ нєℓρ уσυ.