How do I integrate [math]\int \frac{dx}{sin^2x+tan^2x}[/math]?
How do you integrate [math]\int{(1+e^{\tan x})\sec^2 x\,dx}?[/math]

Please tell me if those questions are the same.
A: no

What is the silliest question to ask?
How many planes are in the air now?

Please tell me if those questions are the same.
A: no

How can you find the purpose of human life?
How do we know the purpose of our life?

Please tell me if those questions are the same.
A:
yes