If ` x+ 1/x=4` then prove that the value of `x^4+1/x^4=194`

Explanation

To prove that if \( x + \frac{1}{x} = 4 \), then \( x^4 + \frac{1}{x^4} = 194 \), we can follow these steps:

### Step 1: Square the given equation
We start with the equation:
\[ x + \frac{1}{x} = 4 \]
Now, we square both sides:
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