Find y, if (sqrt{12}-sqrt{147}+ysqrt{3} = 0)
-
A.
5 -
B.
1 -
C.
7 -
D.
3
Correct Answer: Option A
Explanation
(sqrt{12}-sqrt{147}+ysqrt{3} = 0\
sqrt{4times 3}-sqrt{49times 3}+ysqrt{3} = 0\
2sqrt{3}-7sqrt{3}+ysqrt{3} = 0\
ysqrt{3} = 7sqrt{3} – 2sqrt{3}\
y=frac{5sqrt{3}}{sqrt{3}}\
y = 5)