If $x^2 + 4y^2 + 3z^2 + \frac{19}{4} = 2\sqrt{3}(x = y+z)$, then the value of ( x - 4y + 3z) is
Answer & explanation
Correct answer: option 3
$x^2 + 4y^2 + 3z^2 + \frac{19}{4} = 2\sqrt{3}(x = y+z)$,
then the value of ( x - 4y + 3z) = ?
we can find the values of the variables by =
Coefficient of variables on right sides divide by coefficient of same variable on left side along with the signs as given below =
= x = \(\sqrt {3}\)
= y = \(\frac{\sqrt {3}}{4}\)
= z = \(\frac{1}{\sqrt {3}}\)
So the value of ( x - 4y + 3z) = ( \(\sqrt {3}\) - 4(\(\frac{\sqrt {3}}{4}\)) + 3( \(\frac{1}{\sqrt {3}}\))) = $\sqrt{3}$