Provide an appropriate response.If you were told to solve a quadratic equation by completing the square, what mechanical or algebraic difficulties could you encounter?

What will be an ideal response?

1.	The solution may require the use of fractions.

2. The solution may involve the square root of a negative number.
3. The quadratic equation may have zero coefficients for the linear and constant term.
4. To put the original equation in standard form, could require extensive algebraic manipulation.
5. The solution may require the use of radicals.

Mathematics

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Find T, N, and B for the given space curve.r(t) = i + j + 4tk

A. T = (sin 3t)i - (cos 3t)j ; N = (-sin 3t)i - (cos 3t)j ; B = (cos 3t)i - (sin 3t)j - k
B. T = (cos 3t)i - (sin 3t)j ; N = (-sin 3t)i - (cos 3t)j ; B = (cos 3t)i - (sin 3t)j - k
C. T = (cos 3t)i - (sin 3t)j + k ; N = (-sin 3t)i - (cos 3t)j ; B = - k
D. T = (cos 3t)i - (sin 3t)j + k ; N = (-sin 3t)i - (cos 3t)j ; B = (cos 3t)i - (sin 3t)j - k