- Find the equation of the tangent to the curve y= x^3 - x^2 + 4x + 2 at the point (1,6)?

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Put the following equations into an augmented matrices form:
4x + 3y – z = 19 x – 4y + 3z = 50 3x + y + 12z = 7? What is the equation of the line that passes through the points (-3, 1) and (-5, 7) ? Calculate the wavelength (in nanometers) of a H atom (mass = 1.674 × 10−27 kg) moving at 3.75 × 102 cm/s.? What is the chemical formula for barium chloride enneahydrate? When will two protons have equal gravitational and electric force?