Answer:
2 1/2
Step-by-step explanation:
X^1 - x^-1 + x^0
Let x=2
2^1 - 2^(-1) +2^0
We know that negative exponents put the number in the denominator and anything to the zero power is 1
2 - 1/2 +1
Rewriting
2+1-1/2
3-1/2
2 1/2
Answer:
For x = 2 the value of the expression is 2.5
Step-by-step explanation:
the given expression is [tex]x^{1} - x^{-1} + x^{0} = x -(\frac{1}{x}) + 1[/tex]
Simplifying further [tex]\frac{x^{2}-1 }{x} + 1[/tex]
Now if we put the value of x = 2 in the simplified form of the expression we get
[tex]\frac{x^{2} - 1}{2} + 1[/tex] = [tex]\frac{4-1}{2} + 1 = \frac{3}{2} + 1 = 1.5 + 1 = 2.5[/tex]
