The problem asks us to express $\frac{3\sqrt{2}-\sqrt{3}}{2\sqrt{3}-\sqrt{2}}$ in the form $\frac{\sqrt{m}}{\sqrt{n}}$, where $m$ and $n$ are whole numbers. Then, we must choose the correct answer from the given options: (a) $\frac{\sqrt{6}}{\sqrt{10}}$, (b) $\frac{\sqrt{150}}{\sqrt{100}}$, (c) $\frac{2\sqrt{6}}{\sqrt{10}}$, (d) $\frac{5\sqrt{6}}{\sqrt{10}}$.
The problem asks us to express 23−232−3 in the form nm, where m and n are whole numbers. Then, we must choose the correct answer from the given options: (a) 106, (b) 100150, (c) 1026, (d) 1056.
2. Solution Steps
First, let's rationalize the denominator of the given expression:
23−232−3=23−232−3⋅23+223+2
=(23)2−(2)2(32−3)(23+2)
=4⋅3−232⋅23+32⋅2−3⋅23−3⋅2
=12−266+3⋅2−2⋅3−6
=1066+6−6−6
=1056=26
Now, we need to express 26 in the form nm.
We can rewrite 2 as 4, so
26=46
To obtain one of the answer options, we can multiply both the numerator and denominator by 55 to get
46⋅155=46
To match one of the forms of the given answers, we can write
26=1056=10025⋅6=100150
Another way to compare the result 26 to the given options is to compare their squares: