newmansabastian newmansabastian
  • 19-06-2019
  • Mathematics
contestada

What is the solution to this equation?
x² + 101 = 1


A. 10i, -10i
B. 10,-10
c. -10
D. 10i​

Respuesta :

Cricetus
Cricetus Cricetus
  • 23-06-2019

Answer:

A. 10i and -10i

Step-by-step explanation:

We are given our equation as

[tex]x^2+101=1\\[/tex]

Let us subtract 101 from both hand sides

[tex]x^2+101-101=1-101\\[/tex]

[tex]x^2=-100[/tex]

Now taking square roots on both hand sides

[tex]\sqrt{x^{2}}} = \sqrt{-100}[/tex]

[tex]x=\sqrt{100} * \sqrt{-1}[/tex]

[tex]x=10 * (+i) \\x=10*(-i)\\[/tex]

[tex]x=+10i \\x=-10i\\[/tex]

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