Question

Find the values of ′a′ and ′b′ when √8+√7 √8−√7 = a + b√56.

Answer 1

Step-by-step explanation:

a+

11

7

5

b=

7−

5

7+

5

−

7+

5

7−

5

=

(7+

5

)(7−

5

)

(7+

5

)

2

−(7−

5

)

2

=

49−5

49+5+14

5

−49−5+14

5

=

44

28

5

=

11

7

5

a+

11

7

5

b=0+

11

7

5

(1)

⟹a=0,b=1

Hope its help..