Question

If f(x)={x] is greatest integer function then f(3.99)=​

Answer 1

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FORMULA TO BE IMPLEMENTED

$f(x) = [ x ]$

is known as the box function and it is greatest integer but not greater than x

GIVEN

$f(x) = [ x ]$

TO DETERMINE

$f(3.99)$

CALCULATION

Now for 3.99 the greatest integer but not not greater 3.99 is 3

So

$f(3.99) = 3$