Question

GUYS, First QUESTION.
WHAT IS CALLED PILLOW
WRITE UR OWN OPINION
TODAY'S FOLLOWERS AIM 150.​

Answer 1

PILLOW is a large cushion that you put under your head when you are in bed

Given

$\sf\to x = 3+\sqrt{2}$

To find

$\sf\to x^2+\dfrac{1}{x^2}$

Now we can write as

$\sf\to\dfrac{1}{x}=\dfrac{1}{3+\sqrt{8}}$

Now rationalise

$\sf\to\dfrac{1}{x}=\dfrac{1}{3+\sqrt{8}}\times\dfrac{3-\sqrt{8}}{3-\sqrt{8}}=\dfrac{3-\sqrt{8}}{9-8} =3-\sqrt{8}$

we get

$\sf\to\dfrac{1}{x} =3-\sqrt{8}$

Now we can write as

$\sf\to\bigg(x+\dfrac{1}{x}\bigg)^2=x^2+\dfrac{1}{x^2}+2\times x\times\dfrac{1}{x}→(x+1)$

Now put the value of x and 1/x

$\sf\to (3+\sqrt{8}+3-\sqrt{8})^2=x^2+\dfrac{1}{x^2} +2$

$\sf\to (3+3)^2=x^2+\dfrac{1}{x^2} +2$

$\sf\to (6)^2=x^2+\dfrac{1}{x^2} +2$

$\sf\to 36=x^2+\dfrac{1}{x^2} +2$

$\sf\to x^2+\dfrac{1}{x^2} =36-2$

$\sf\to x^2+\dfrac{1}{x^2} =34$

Answer

$\sf\to x^2+\dfrac{1}{x^2} = 34$

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Answer 2

Answer:

A pillow is a support of the body at rest for comfort, therapy, or decoration.