Ketaki Subhash Ghatol
from
CSA Satara, Satara
Subject :IMO Class : Class 8
If =2, then = _____.
A
B
C
D Both (A) and (B)
Ans 1:
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ARUNAV
from
DPS VINDHYANAGAR, VINDHYANAGAR
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 3:
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Abhjith S Kumar
from
Airport Senior Secondary school Karipur, Kozhikode Intl. Airport, Kozhikode Airport
Class : Class 9
A-
10/3
Ans 5:
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JANYA CHANGELA
from
UDGAM SCHOOL FOR CHILDREN , Ahmedabad
Class : Class 8
This is because -10/3 whole square is 100/9 and 10/3 whole square is also 100/9
Ans 7:
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Vartika Agarwal
from
Phoenix world school, Pune
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 8:
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N Khanna
from
MJKPS, New Delhi
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