# Paneer Definite Masala 14

Calculus Level 4

$\large \int_0^1 \arctan(1-x+x^2) \, dx$

The integral above has a closed form. Find the value of this closed form.

You may use the following approximations: $$\log_{10} 2 = 0.3010, \ln10 = 2.3026$$.