Question

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

Answer 1

Answer:

(√2 + 1)(√2 - 1)

=(√2)² - (1)²

since, a² - b² = (a +b)(a - b)

= 2 - 1

=1

Hope it helps you!!