Definite Integration Question 158

Question: What is the area bounded by y = tan x, y = 0 and $ x=\frac{\pi }{4} $ -

Options:

A) $ \ell n2 $ square units

B) $ \frac{\ell n2}{2} $ square units

C) $ 2(\ell n2) $ square units

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Required area $ =\int_0^{\frac{\pi }{4}}{\tan xdx} $

$ =ln| \sec 1 |_0^{\frac{\pi }{4}}=ln\sqrt{2}=\frac{ln2}{2} $