Subject :IMO Class : Class 8
If 
=2, then 
= _____.
A 
B 
C 
D Both (A) and (B)
Ans 1:
Class : Class 6
Ans 2:
Class : Class 8
This is because -10/3 whole square is 100/9 and 10/3 whole square is also 100/9
Ans 3:
Class : Class 9
A-
10/3
Ans 4:
Class : Class 9
You all may have done squaring on both sides. Now what you got it a² b²-2(because ab of third term cancel out)=64/9(8/3 square)(we are supposing a as root 3 x and b as1/ root 3 x)As the identity for (a b)² is a² b² 2(remeber ab of 2ab cancels out in all steps in this question),we need to add 4 on both side, and then square root the whole equationWe get a² b² 2=100/9. And on rooting, as both 10/9 and -10/9(if you are having problem understanding this then you must read some 9th class chapter's basic.)So option c is the answer
Ans 5:
Class : Class 9
how can it be both?10/3 and -10/3 are like north and south polesthey are completely differentit can only be eitherboth is wrong
Ans 6:
Class : Class 8
Ans 7:
Class : Class 10
can someone pls tell how to exactly solve the question, i got the answer till 8/3 in rhs. after that i dont understand how to do
Ans 8:
Class : Class 5