If x=1 -√2 find the value of ( x-1/x) ⁴

Mathematics

1 answer:

soldier1979 [14.2K]2 years ago

6 0

Answer:

Step-by-step explanation:

ok so basically u want to plug in ur value of x into the expression right away and combine everything in the parentheses so it's one fraction which is -

((1 -√2-1)/(1 -√2))⁴ = (-√2/(1 -√2))⁴ and then u get 4/(1 -√2)⁴ as ur final answer

You might be interested in

Maura is 5 years younger than her sister Cara. Seven years ago, Maura was half as old as her sister. How old is Maura now?

masha68 [24]

Let's call Maura's age now M and Cara's age now C.

We know Maura is five years younger than Cara. In symbols that is, M - 5 = C

We also know that 7 years ago Maura's age was half of Cara's. Maura's age 7 years ago was M-7 and Cara's age seven years ago was C-7. Since Maura's age (7 years ago) was half of Cara's we can write in symbols: $M-7= \frac{1}{2}(C-7)$

Let's take that last equation and substitute C - 5 for M (this is because according to our first equation these are equal). When we do this we get an equation with only C as the variable and solve for C as follows:

$M-7= \frac{1}{2}(C-7)$
$C-5-7= \frac{1}{2}(C-7)$
$C-12= \frac{1}{2}C-( \frac{1}{2})(7)$
$C-12= .5C-3.5$
$.5C-12= -3.5$
$.5C= 8.5$
$C= 17$

Cara is 17. Since Maura is 5 years younger she is 12.

As a check, seven years ago Cara was 10 and Maura was 5. It is the case that Maura was half Cara's age seven years ago.

4 0

2 years ago

Plz help me with this and u can change the slide too

Nadusha1986 [10]

The 1 slide it is intersecting the second slide is the 4x-y=5 slide 3 is the same and 4th slide is different

4 0

2 years ago

Someone help me with this pls i will give brainliest

bekas [8.4K]

Stores d and e, you have to divide the cost by the ounces.

8 0

2 years ago

Read 2 more answers

A number , x,rounded to 1 decimal place is 3.7 what is the error interval for x

Phantasy [73]

<h2>Answer:</h2>

The error interval for x is:

[3.65,3.74]

<h2>Step-by-step explanation:</h2>

The number after rounding off is obtained as:

3.7

We know that any of the number below on rounding off the number to the first decimal place will result in 3.7:

3.65 3.66 3.67 3.68 3.69 3.70 3.71 3.72 3.73 3.74

( Because if we have to round off a number present in decimals to n place then if there is a number greater than or equal to 5 at n+1 place then it will result to the one higher digit at nth place on rounding off and won't change the digit if it less than 5 )

Hence, the error interval is:

[3.65,3.74]

8 0

2 years ago

Write an equation for each linear function described. Show your work. The graph of the function passes through the point (2,1),

svp [43]

Step-by-step explanation: