Find the area bounded by the curve y = sin x between x = 0 and x = 2π.
The required area = Area of OABO + Area BCDB
⇒ 
⇒ 
= [-cosπ +cos0] +|-cos2π + cosπ|
= 1 + 1+ |(-1 -1)|
= 2 +|-2|
= 2 + 2
= 4 units
5
Find the area bounded by the curve y = sin x between x = 0 and x = 2π.
The required area = Area of OABO + Area BCDB
⇒
⇒
= [-cosπ +cos0] +|-cos2π + cosπ|
= 1 + 1+ |(-1 -1)|
= 2 +|-2|
= 2 + 2
= 4 units