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Question
If f(x) = 4[x] − 3, where [x] is greatest integer function of x, then find `"f"(- 5/2)`
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Solution
f(x) = 4[x] − 3
`"f"(- 5/2)`
= `4[− 5/2] − 3`
= 4(− 3) − 3
= − 15
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