(21)2=
To solve this problem, we'll follow these steps:
- Step 1: Identify the fraction to be squared, which is 21.
- Step 2: Apply the exponent rule for fractions.
- Step 3: Calculate the result by squaring both the numerator and denominator.
Now, let's work through each step:
Step 1: We have the fraction 21.
Step 2: When squaring a fraction, apply the formula (ba)n=bnan.
Step 3: Using (21)2=2212, we calculate
- The square of the numerator is 12=1.
- The square of the denominator is 22=4.
- Therefore, (21)2=41.
Thus, the solution to the problem is 41.