Correct option is A
Given:
N =
Formula Used:
(A + B)2= A2+ B2+ 2 AB
(A - B)2= A2+ B2- 2 AB
Solution:
N =
=
=
=
= 92 - 48 + 24
= 44 + 24
= 62 + (2)2 + (2 6 2)
= (6 + 2)2
Therefore, = (6 + 2)
Thus, the correct option is (a).
Find the positive square root of
Given:
N =
Formula Used:
(A + B)2= A2+ B2+ 2 AB
(A - B)2= A2+ B2- 2 AB
Solution:
N =
=
=
=
= 92 - 48 + 24
= 44 + 24
= 62 + (2)2 + (2 6 2)
= (6 + 2)2
Therefore, = (6 + 2)
Thus, the correct option is (a).
Suggested Test Series
Suggested Test Series