If x = 5 + 2√6,

Find (x-1)/√x ............... Answer is 2√3............. Please explain the steps involved.

Printable View

- Feb 16th 2013, 10:46 AMAmapSquare root solving
If x = 5 + 2√6,

Find (x-1)/√x ............... Answer is 2√3............. Please explain the steps involved. - Feb 16th 2013, 11:28 AMemakarovRe: Square root solving
The answer is 2√2. Prove that the square of the expression is 8. To simplify a fraction with the denominator , multiply the numerator and the denominator by .

- Feb 16th 2013, 11:36 AMHallsofIvyRe: Square root solving
First, no, that is not the answer. Are you sure you copied it correctly?

It would be possible, since you are given x, to find both x- 1 and and do the division directly. However, is a little tedious to find so I would look at . so and . Then . Do that division by multiplying both numerator and denominator by - Feb 16th 2013, 03:35 PMSorobanRe: Square root solving
Hello, Amap!

There is a typo . . .

Quote:

Note that: .

Then: .

Rationalize: .

. . . . . . . . .

- Feb 17th 2013, 03:51 AMibduttRe: Square root solving
Attachment 27081The answer is 2 square-root 2