Question

evaluate x^1-x^-1+x^0 for x=2​

Answer 1

Answer:

5/2

Step-by-step explanation:

$x^1=x\text{ and }x^{-1}=\frac{1}{x} \text{ and }x^0 = 1$

These make the expression $x^1-x^{-1}+x^0=x-\frac{1}{x}+1$ .

Plug in x = 2 to get  $2-\frac{1}{2}+1=\frac{5}{2}$

Answer 2

Answer:

given equation = x¹-x⁻¹+x⁰

lets subtitute the value of x in this equation = 2-1/2+1

= 3-1/2 =5/2 =2.5 (ans)

Hope it helps