Listen NCERT Audio Books - *Kitabein Ab Bolengi*

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

5