X=4 is the answer if you are looking for x
Answer:
is there a picture?
Step-by-step explanation:
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)
Answer:
x8
Step-by-step explanation: bacause if you see and look really close
