MCQ
$\int_{\,0}^{\,9} {[\sqrt x + 2]dx}=$ (કે જ્યાં $[.]=$ એ મહતમ પૂર્ણાક છે )
- ✓$31$
- B$22$
- C$23$
- Dએકપણ નહીં.
$ = \int_0^1 {2\,dx + \int_1^4 {3\,dx + \int_4^9 {4\,dx} } } $
$ = 2 + (12 - 3) + (36 - 16)$
$ = 2 + 9 + 20 = 31$.
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