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Evaluate int(1)^(e^(6))[(logx)/3]dx, whe...

Evaluate `int_(1)^(e^(6))[(logx)/3]dx,` where [.] denotes the greatest integer function.

Text Solution

Verified by Experts

The correct Answer is:
`(e^(6)-e^(3))`
When `1ltxlte^(3),[(logx)/3]=0`
and when `e^(3)ltxlte^(6),[(logx)/3]=1`
`:. int_(1)^(e^(6))[(logx)/3]dx=int_(1)^(e^(3))[(logx)/3]dx+int_(e^(3))^(e^(6))[(logx)/3]dx`
`=int_(1)^(e^(3)) 0dx+int_(e^(3))^(e^(6))1dx=(e^(6)-e^(3))`
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