Math, asked by prathmesh2217, 5 months ago

(a+√b) (a-√b) tell me fast​

Answers

Answered by saritamaheshwari384
0

(a)² - (√b)²

this is the identity .

have any doubt regarding it can contact me on brainly

Answered by sakshi1158
4

Step-by-step explanation:

Let’s take a look at the equation.

(For simplicity’s sake, let’s assume that we are talking about real numbers, and not complex numbers, i.e. the square root of negative numbers is not defined. So a and b are positive.)

√a+√b=√((√a+√b)²)=√((√a+√b)·(√a+√b))=√(√a·(√a+√b)+√b·(√a+√b))

=√(√a·√a+√a·√b+√b·√a+√b·√b)=√(a+2·√a·√b+b)≠√(a+b)

Note: The last inequation is only true if both a and b are not equal to 0.

please mark me as brainlist

Similar questions