Question

(√2+1) (√2-1)
class 9 please send step by step solution
only ginus can answer​

Answer 1

Answer:

Hey ur answer...

Step-by-step explanation:

(√2+1) (√2-1)

so,

(√2)(√2)-(+1)(-1)

2-1

1

Answer 2

Answer:

(√2+1) (√2-1)

=> (√2)² - (1)²

{ by using this identity a²-b² = (a+b)(a-b) }

=> 2 - 1

=> 1

Hope it helps you