Subject :IMO Class : Class 3
Subject :IMO Class : Class 8
Ans 1:
Class : Class 9
x+1/x=4
So,(x+1/x)^2=4^2=16
x^2+2+1/x^2=16
Since (x-1/x)^2=x^2-2+1/x^2,
It will be=(x+1/x)^2-4=16-4=12
So, (x-1/x)=√12
Which is equal to √2×2×3
=2√3
Post Your Answer
Subject :IMO Class : Class 3
Post Your Answer
Subject :IMO Class : Class 6
Post Your Answer
Subject :IMO Class : Class 4
Post Your Answer
Subject :IMO Class : Class 4
Post Your Answer
Subject :IMO Class : Class 4
Post Your Answer
Subject :IMO Class : Class 6
Post Your Answer
Subject :IMO Class : Class 6
Post Your Answer
Subject :IMO Class : Class 6