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[tex]x \times \frac{1}{x} = 1 \quad (x \neq 0)[/tex]

Sagot :

Sure, let's solve the equation step-by-step: [tex]\( x \times \frac{1}{x} = 1 \)[/tex] with the constraint [tex]\( x \neq 0 \)[/tex].

1. Understand the Equation:

The given equation is [tex]\( x \times \frac{1}{x} = 1 \)[/tex].

2. Simplify the Expression:

Let's look at the left-hand side (LHS) of the equation: [tex]\( x \times \frac{1}{x} \)[/tex].

Since [tex]\( \frac{1}{x} \)[/tex] represents the multiplicative inverse of [tex]\( x \)[/tex], multiplying [tex]\( x \)[/tex] by [tex]\( \frac{1}{x} \)[/tex] will give us 1, provided [tex]\( x \)[/tex] is not zero. This is because:

[tex]\[ x \times \frac{1}{x} = \frac{x}{x} = 1 \text{ (as long as } x \neq 0) \][/tex]

3. Verify Both Sides of the Equation:

On the left side, we already have:

[tex]\[ x \times \frac{1}{x} = 1 \][/tex]

On the right side of the equation, we have:

[tex]\[ 1 = 1 \][/tex]

4. Choose a Specific Value for Verification:

To illustrate, let's take a specific value of [tex]\( x \)[/tex] (as [tex]\( x \)[/tex] can be any real number except 0). Let's pick [tex]\( x = 5 \)[/tex]:

[tex]\[ x = 5 \][/tex]

5. Calculate the Left Side with [tex]\( x = 5 \)[/tex]:

Here, we calculate:

[tex]\[ 5 \times \frac{1}{5} = 1 \][/tex]

Substituting [tex]\( x = 5 \)[/tex] into the left side of the equation:

[tex]\[ 5 \times \frac{1}{5} = \frac{5}{5} = 1 \][/tex]

6. Compare LHS and RHS:

Both sides are equal:

[tex]\[ 1 = 1 \][/tex]

Therefore, the equation holds true.

7. Conclusion:

The specific value [tex]\( x = 5 \)[/tex] satisfies the equation [tex]\( x \times \frac{1}{x} = 1 \)[/tex], confirming that the solution is valid for this chosen value of [tex]\( x \)[/tex].