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Find the solution(s) of the following equation:
[tex] x^2 = \frac{100}{361} [/tex]

Choose all answers that apply:

A. [tex] x = -\frac{10}{19} [/tex]
B. [tex] x = -\frac{10}{19} [/tex]
C. [tex] x = \frac{5}{19} [/tex]
D. [tex] x = \frac{10}{19} [/tex]
E. None of the above


Sagot :

To find the solution(s) for the equation [tex]\( x^2 = \frac{100}{361} \)[/tex], follow these steps:

1. Write down the given equation:

[tex]\[ x^2 = \frac{100}{361} \][/tex]

2. Take the square root of both sides:

To solve for [tex]\( x \)[/tex], we need to take the square root of both sides of the equation. Remember that taking the square root will result in two values: one positive and one negative.

[tex]\[ x = \pm \sqrt{\frac{100}{361}} \][/tex]

3. Simplify the square root:

[tex]\[ x = \pm \frac{\sqrt{100}}{\sqrt{361}} \][/tex]

We know that [tex]\(\sqrt{100} = 10\)[/tex] and [tex]\(\sqrt{361} = 19\)[/tex]:

[tex]\[ x = \pm \frac{10}{19} \][/tex]

So, the solutions are:

[tex]\[ x = \frac{10}{19} \quad \text{and} \quad x = -\frac{10}{19} \][/tex]

4. Match with the given choices:

Let's compare our solutions with the provided options:

A) [tex]\( x = -\frac{10}{9} \)[/tex]

This value is incorrect as it does not match [tex]\(-\frac{10}{19}\)[/tex].

B) [tex]\( x = -\frac{1}{6} \)[/tex]

This value is incorrect as it does not match [tex]\(-\frac{10}{19}\)[/tex].

C) [tex]\( x = \frac{5}{18} \)[/tex]

This value is incorrect as it does not match [tex]\(\frac{10}{19}\)[/tex].

D) [tex]\( x = \frac{5}{9} \)[/tex]

This value is incorrect as it does not match [tex]\(\frac{10}{19}\)[/tex].

[tex]\( \text{None of the above} \)[/tex]

This choice implies that none of the listed options are correct.

Since none of the provided choices (A, B, C, D) match our correct solutions of [tex]\( x = \pm \frac{10}{19} \)[/tex], the final answer is:

[tex]\[ \boxed{\text{None of the above}} \][/tex]