Recall that
d/dx sech(x) = - sech(x) tanh(x)
d/dx tan⁻¹(x) = 1/(1 + x²)
Then by the chain rule,
dy/dx = - sech(x) tanh(x) / (1 + x²)
I think you have to follow someone and ask them to be your tutor.
Answer:
24
Step-by-step explanation:
red is most popular with 33 votes. silver is least popular with 9 votes.
33 - 9
24
Answer:2.5 m/s
Step-by-step explanation:
Diagram? There is no diagram given.
a.


Cannot solve b without the diagram.