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if f(x)=3/x+2- √x-3
f(19)= ​

if f x 3 x 2 x 3f 19

Answer :

Answer: f(19) = 29/7.

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

[tex]\frac{3}{19+2} - \sqrt{19-3}[/tex]

2. Reduce these items to get:

[tex]\frac{3}{21} - \sqrt{16} \\[/tex]

3. Reduce again:

[tex]\frac{1}{7} + 4 = \frac{1}{7}+\frac{28}{7} = \frac{29}{7}[/tex]

4. However, be cautious. The full answer for this has a negative component ([tex]\frac{-27}{7}[/tex]) because the square root of 16 can be either 4 or -4.

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Rewritten by : Barada