like for light you mean? Ultraviolet.... so violet.
Ultra violet
If the discriminant is greater than zero (b^2 - 4ac) > 0, then the equation have two roots that are real and unequal. Further, the roots are rational if and only if (b^2 - 4ac) is a perfect square, otherwise the roots are irrational.Example:Find the equation whose roots are x = u/v and x = v/uSolution:x = u/vx - u/v = 0x = v/ux - v/u = 0Therefore:(x - u/v)(x - v/u) = (0)(0) or(x - u/v)(x - v/u) = 0Let c = u/v and d = v/u. We can write this equation in equation in the form of:(x - c)(x - d) = 0x^2 - cx - dx + CD = 0 orx^2 - (c +d)x + CD = 0The sum of the roots is:c + d = u/v + v/u = (u)(u)/(v)(u) + (v)(v)/(u)(v) = u^2/uv + v^2/uv = (u^2 + v^2)/uvThe product of the roots is:(c)(d) = (u/v)(v/u) = uv/vu = uv/uv = 1Substitute the sum and the product of the roots into the formula, and we'll have:x^2 - (c +d)x + CD = 0x^2 - [(u^2 + v^2)/uv]x + 1 = 0 Multiply both sides of the equation by uv(uv)[x^2 - ((u^2 + v^2)/uv))x + 1] = (uv)(0)(uv)x^2 - (u^2 + v^2)x + uv = 0 which is the equatiopn whose roots are u/v, v/u
ultra violet rays
uv - integral of (v * du)
ultraviolet
solar 'UV' means the suns ultraviolet rays that can damage our skin, and it is possible that it can give us cancer, but there is no correlation that has been found yet that the ultraviolet rays does cause the types of cancers.
vacuum UV rays. there is a song called avuva
It could stand for Ultraviolet or many other things.
u^2 + uv + v has no simple factorisation. As a quadratic in u, it can be "factorised" by using the quadratic formula to find the root values (r1 and r2) for u, and then the factorisation would be (u - r1)(u - r2); however the values of the roots are: r1 = (-v + √(v^2 - 4v))/2 r2 = (-v - √(v^2 - 4v))/2 which leads to the complicated "factorisation": u^2 + uv + v = (u + (v + √(v^2 - 4v))/2)(u + (v - √(v^2 - 4v))/2)
5
virtual
UV has a wavelenght of 400nm and less you can calculate the frequency with this formula V (frequency) = c (speed of light) / λ (wavelenght)