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Last updated at April 19, 2021 by Teachoo

Example 24 Find the approximate change in the volume V of a cube of side x meters caused by increasing the side by 2%.Given Side of the cube = x metres Also, Increase in side = 2% of side = 0.02x Hence, βπ = 0.02 x And, Volume of the cube = V = x3 m3 We need to find Approximate change in volume of the cube i.e. βπ½ Now, βπ = ππ/ππ₯ βπ₯" " = (π(π₯^3))/ππ₯ βπ₯" " = 3x2 (0.02x) = 0.06 x3 Hence, the approximate change in the volume of the cube is 0.06 x3 m3