Answered

Simplify:

[tex]\[ \frac{1}{2} \left( \frac{31}{2} + \frac{11}{2} \left( 2^{\frac{1}{2}} - \frac{2}{3} \right) \right) \][/tex]

[tex]\[\frac{3}{4} \text{ of } 2^{\frac{1}{2}} \div \frac{1}{2}\][/tex]



Answer :

Let's break down and simplify each part of the given expressions step by step.

### First Part:

Simplify [tex]\(\frac{1}{2}\)[/tex] of [tex]\(\frac{31}{2} + \frac{11}{2} \left(2^{1/2} - \frac{2}{3}\right)\)[/tex]

1. Calculate the expression inside the parentheses first:
[tex]\[ 2^{1/2} \approx 1.414213562 \quad \text{(the square root of 2)} \][/tex]
Therefore,
[tex]\[ 2^{1/2} - \frac{2}{3} \approx 1.414213562 - 0.666666667 \approx 0.747546895 \][/tex]

2. Multiply [tex]\(\frac{11}{2}\)[/tex] by [tex]\((2^{1/2} - \frac{2}{3})\)[/tex]:
[tex]\[ \frac{11}{2} \times 0.747546895 \approx 11 \times 0.373773447 \approx 4.111508917 \][/tex]

3. Add [tex]\(\frac{31}{2}\)[/tex] to the result obtained in step 2:
[tex]\[ \frac{31}{2} \approx 15.5 \][/tex]
Therefore,
[tex]\[ 15.5 + 4.111508917 \approx 19.611508917 \][/tex]

4. Now, take [tex]\(\frac{1}{2}\)[/tex] of the result:
[tex]\[ \frac{1}{2} \times 19.611508917 \approx 9.805754459 \][/tex]

### Second Part:

Simplify [tex]\(\frac{3}{4}\)[/tex] of [tex]\(2^{1/2} \div \frac{1}{2}\)[/tex]

1. Calculate [tex]\(2^{1/2}\)[/tex] again (already done above):
[tex]\[ 2^{1/2} \approx 1.414213562 \][/tex]

2. Divide [tex]\(2^{1/2}\)[/tex] by [tex]\(\frac{1}{2}\)[/tex]:
[tex]\[ 1.414213562 \div \frac{1}{2} = 1.414213562 \times 2 \approx 2.828427124 \][/tex]

3. Now, take [tex]\(\frac{3}{4}\)[/tex] of the result:
[tex]\[ \frac{3}{4} \times 2.828427124 \approx \left(\frac{3 \times 2.828427124}{4}\right) \approx 2.121320343 \][/tex]

### Final Results:
Putting it all together, we get:

- The simplified result for the first part:
[tex]\[ 9.805753963192679 \][/tex]
- The simplified result for the second part:
[tex]\[ 2.121320343559643 \][/tex]

Thus, the detailed, step-by-step solutions yield the answers:
[tex]\[ 9.805753963192679 \quad \text{and} \quad 2.121320343559643 \][/tex]