Question

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Solve by formula method :-
x²-5x+6=0

Answer 1

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Solve by formula method :-

x²-5x+6=0

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$x²-5x+6=0$

$a = 1 \\ b = - 5 \\ c = 6$

$formula = \\ x = \frac{ - b± \sqrt{ {b}^{2} - 4ac} }{2a}$

$substitute \: the \: values$

$x = \frac{ - ( - 5)± \sqrt{ {( - 5)}^{2} - 4(1)(6) } }{2(1)}$

$x = \frac{ + 5± \sqrt{25 - 24} }{2}$

$x = \frac{ + 5± \sqrt{1} }{2}$

$x = \frac{ + 5±1}{2}$

$x = \frac{5 + 1}{2} \: \: or \: \: x = \frac{5 - 1}{2}$

$x = \frac{6}{2} \: \: or \: \: x = \frac{4}{2}$

$x = 3 \: \: or \: \: x = 2$

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Answer 2

Answer:

Chandrasekhara Venkata Raman was an Indian physicist known mainly for his work in the field of light scattering. With his student K. S. Krishnan, he discovered that when light traverses a transparent material, some of the deflected light changes wavelength and amplitude