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Swaraj Rath

· started a discussion

· 1 Months ago

wrong answer (Question: 101090.0 )

x and y can be both positive and negative

Question:

DIRECTIONS: In the given question two equations numbered I and II are given. You have to solve both the equations and

Give answer if

(1)   x>y

(2)   x≥y

(3)   x<y

(4)   x≤y

(5)  x = y or the relationship cannot be established.


Options:
A) 1
B) 2
C) 3
D) 4
E) 5
Solution:
Hence, x>y

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

There are different condition for taking +/- sign.
If Given,
X^2= 25
taking root in both side.
X= root 25
here we taking root thus it gives +5 and -5.

If Given
X= root 25
X= +5
here root already given thus by default we take positive because before root 25 have no sign.

So here we can't take negative X and Y.

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