Questions asked by Hayden L.
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How can I simplify sin2xcosx+cos2xsinx?
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How can I determine the exact values for tan75?
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How can I find c and d if 8cos(θ−π3)=csinθ+dcosθ?
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Is there a difference between a molecule and an atom?
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How would you justify whether reactivity is a chemical or physical property?
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How do you graph y=cos(90−A) as sinA?
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How do I find the mass of copper(II) hydroxide which is formed when excess copper(II) sulfate is added to 100mL of a 0.450 mol L−1 solution of sodium hydroxide?
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The average of two numbers is 18. When 2 times the first number is added to 5 times the second number, the result is 120. How do I find the two numbers?
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Petra is 4 times as old as Philippa. In 8 years time she will be 5 times as old as Philippa. How old are Philippa and Petra?
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How many grams of KOH are needed to neutralise 500mL of 2mol L−1 H2SO4?
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At what point on the quadratic y=x2-4x-1 is the tangent parallel to the straight line y=-2x+5?
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Without the use of the solve function of a calculator how do I solve the equation: x4−5x3−x2+11x−30=0?
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How do I algebraically simplify this expression x−52−13?
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What is the domain and range of √5x+62?
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How do you find the equations of the tangent and normal of the curve at x=t2, y=t+3, t=1?
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How do you find the derivative and double derivative of the equation f(x)=xe−x2?
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How do you find the equations of the tangents to 5x2−4y2=4 at those points where the curve is cut by 5x−2y=4?
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How do you find the factors of f(z) over C if f(z)=2z3+3z2−14z−15?
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How do you express √2+i in polar form?
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How do you factorize −9z2+24z−32 over C?
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How do you find the value of a if 2i is a root of z3−2z2i+az−32i=0?
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How do you use Demoivre's theorem to show that sin6θ=sin2θ(3−4sin2θ)(1−4sin2θ)?
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How do you write the balanced half equation for the oxidation of methanal (formaldehyde), CH2O to CO2?
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How do you simplify sina+tana1+cosa?
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How do you simplify tanx1−tanx+cosxsinx−cosx?