Definite Integration Question 62

Question 62

  1. The integral 01.5[x2]dx, where [.] denotes the greatest function, equals

(1988,2M)

Match the Columns

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Solution:

  1. 01.5[x2]dx=010dx+121dx+21.52dx

$$ \begin{aligned} & =0+[x]{1}^{\sqrt{2}}+2[x]{\sqrt{2}}^{1.5} \ & =(\sqrt{2}-1)+2(1.5-\sqrt{2}) \ & =\sqrt{2}-1+3-2 \sqrt{2} \ & =2-\sqrt{2} \end{aligned} $$



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