Q5 of 40 Page 375

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


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