Question

What is the value of (root 11 - root 7) (root 11 + root 7)

Answer 1

Step-by-step explanation:

( root 11 - root 7)(root 11 +root 7)

Using identity (a+b) (a-b) = a square - b square

=((root 11 *root 11) - (root 7 * root 7))

=11-7

= 4

Answer 2

Answer:

( √11 - √7 ) ( √11 + √7 )

Step-by-step explanation:

hai darlings .....

my ans is

  .........

using which identy =

( a + b ) ( a - b ) = a² - b²

...........

11 -7  ..

4 is the ans

pls click the thanks

Report

kakkerisunil

Hi