4.89 roughly.
Sin2x = radical 2
(a-2(ab)1/2+b)/(a-b)
2
6 radical 2
4 radical 6
First, note that radical 4 is 2. So 3xradical 4 is just 6, Now we have 6+2 radical 3. You can't do much with this except factor out a 2 if you want 2(3+Radical 3)
When you multiply 6√2 by √2, you can simplify the expression by multiplying the numbers outside the radicals and multiplying the numbers inside the radicals. This results in 6√2 * √2 = 6 * 2 = 12. Therefore, the answer is 12.
1 over 2 times radical 6
3root(6)+5root(2) you really answered it yourself!
3^3*radical(128) = 3^3*radical(2^7) = 3^3*radical(2^6*2) =3^3*2^3*radical(2) = 216*radical(2).
D.2√3
2*√54 = 2*√9*√6 = 2*3*√6 = 6√6 ■