Math, asked by gayatribaviskar979, 1 year ago

how should I have to solve this and by using which identity.....



plzz ans it fast...​

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Answers

Answered by krithi2001143
4

Heya mate!!

Here's your answer!!

You can use the identity a² - b² = (a+b)(a-b)

Solving the question,

α×β = (1 + √2) (1 - √2)

= 1² - (√2)²

= 1 - 2

= (-1)

Τherefore the answer is (-1).

Hope it helps you!!

Cheers ☺☺

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Answered by srimanthbalaji
1

Answer:

-1

Step-by-step explanation:

(1+√2)(1-√2)      

1 square +(√2)the whole square  { using identity (a)squre+(b)squre=<a+b><a-b>}

=1-2

=-1

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