Question

Q:1 Find the product (√3-1) (2+√3)


#AskMathsGenius


Solve it!

Answer 1

(1+3√2)*(1-3√2)

So let 1 be ‘a’ and 3√2 be ‘b’.

Now (a+b)(a-b) => a^2-b^2

SUBSTITITING THE VALUES =>

(1+3√2)(1-3√2)

=>(1)^2-(3√2)^2

=>1-9(2)

=>1-18

=>-17.

Yes the product is a rational number => -17.

So -17 is the product of (1+3√2)(1-3√2) which isthe required answer.

HOPE IT HELPS.

Answer 2

Answer:

x+1/x = 4

Step-by-step explanation:

GIVEN:−

x = 2 + √3

1/x = 1/(2 + √3) * (2 - √3)/(2 - √3)

1/x = (2 - √3)/(4 - 3)

[ (a - b)(a + b) = (a² - b²) ]

1/x = (2 - √3)

now,

x + 1/x = (2 + √3) + (2 - √3)

x + 1/x = 2 + 2 + √3 - √3

x + 1/x = 4

pls mark it as brainliest