Question

If f(x)=3/x+2- √x-3
f(19)= ​

Answer 1

Answer: f(19) = 29/7.

Step-by-step explanation: 1. Replace x with 19 in the function. This gives you:

`(3)/(19+2) - √(19-3)`

2. Reduce these items to get:

`(3)/(21) - √(16) \\`

3. Reduce again:

`(1)/(7) + 4 = (1)/(7)+(28)/(7) = (29)/(7)`

4. However, be cautious. The full answer for this has a negative component (
`(-27)/(7)`) because the square root of 16 can be either 4 or -4.