In the following questions two equation numbered I and II are given You have to solve both equations and . . . . .
(i) `x^(2)=144`
(ii) `y=sqrt(81)`

Answer

To solve the given equations, we will follow these steps:

### Step 1: Solve the first equation \( x^2 = 144 \)

1. Start with the equation:
\[ x^2 = 144 \]

2. To find \( x \), take the square root of both sides:
\[ x = \sqrt{144} \]

3. Calculate the square root:
\[ \sqrt{144} = 12 \]
However, since squaring can yield both positive and negative results, we also consider:
\[ x = -12 \]

4. Therefore, the solutions for \( x \) are:
\[ x = 12 \quad \text{or} \quad x = -12 \]

### Step 2: Solve the second equation \( y = \sqrt{81} \)

1. Start with the equation:
\[ y = \sqrt{81} \]

2. Calculate the square root:
\[ \sqrt{81} = 9 \]

3. Thus, the solution for \( y \) is:
\[ y = 9 \]

### Final Solutions
- The solutions for the equations are:
\[ x = 12 \quad \text{or} \quad x = -12 \]
\[ y = 9 \]

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