If then N equals ______.
A 1
B
C
D
Ans 1:
Edit Post
Class : Class 9
HInt
Hint: Square and square root the first term and for the second term write it in the form of (root2-1)^2
Then the final answer comes 1
'
Ans 2:
Edit Post
Class : Class 9
First Term= square and square root = root 2Second term = square root of (root2 -1)^2 = root2 -1The difference of first and second term = 1