Math, asked by snehakonar812, 15 hours ago

If x = 3 + √2 then find the value of x² - 1/x2

(A) 24

(B) 42

(C) 24√2

(D) 42 √2​

Answers

Answered by godoparmy
0

Answer:

Step-by-step explanation:jkkkm

Answered by vishwachaitanya
0

Answer:

7

Step-by-step explanation:

(3+√2)² - 1/(3+√2)²

=> (3+√2)² - (1/3+√2)²

=> (3+√2)(3-√2) [a²-b² = (a+b)(a-b)]

=> 3(3-√2) +√2(3-√2)

=> 9-3√2+3√2-2

=> 9-2

=> 7

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