∫01∞2(5+c)−(3+c)dϰ
∫01∞22dϰ
(2x+c)2 1
(2(2)+c)−(2(1)+c)
(4+c)))()−(2+c)
4−2=2units2.
2. ∫04∞∫013x∞2ydydϰ
∫04∞(y2+c)3x1dx
∫04∞(3x2+c)_(12+c)dx
[39x3−x+c]4
[3x3−x+c]40
[3(4)3−4]
192−4=188units2⋅
Adeshola Racheal,
SSS 3,
Rex Varsity.