1003108204

SubArea: 
Definite integral
Level: 
B
Project ID: 
1003108204
Accepted: 
1
The value of the definite integral \( \int\limits_{-\frac{\pi}4}^{\frac{\pi}4}\left(\mathrm{tg}^2⁡x+1\right)\mathrm{d}x \) is:
a whole number
a decimal number
a proper fraction
an irrational number