Question

please tell the answer with SOLUTION
if x = (3 + √2)/(3 - √2) and
y = (3 - √2)/(3 + √2)
then x + y is



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Answer 1

Answer:

The answer is 14.

Step-by-step explanation:

Given, x = (3+√2)(3-√2)

= (3)^2 - (√2)^2. [(a+b)(a-b) = a^2-b^2]

= 9-2. (√2×√2=2)

= 7.

in same way in case of "y",,,

y = (3-√2)(3+√2)

=(3)^2 -(√2)^2.

= 9-2.

=7.

Now, value of x+y,,

x+y = 7+7

; x+y = 14.

HOPE IT WILL BE HELPFUL