Questions asked by Hayden L.
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How can I simplify sin2xcosx+cos2xsinx?

How can I determine the exact values for tan75?

How can I find c and d if #8 cos (theta  pi / 3)=c sin theta + d cos theta#?

Is there a difference between a molecule and an atom?

How would you justify whether reactivity is a chemical or physical property?

How do you graph #y = cos(90A)# as sinA?

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?

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?

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?

How many grams of KOH are needed to neutralise 500mL of 2mol #L^1# H2SO4?

At what point on the quadratic y=#x^2#4x1 is the tangent parallel to the straight line y=2x+5?

Without the use of the solve function of a calculator how do I solve the equation: #x^45x^3x^2+11x30=0#?

How do I algebraically simplify this expression #((x5)/21)/3#?

What is the domain and range of #sqrt((5x+6)/2)#?

How do you find the equations of the tangent and normal of the curve at #x=t^2#, #y=t+3#, #t=1#?

How do you find the derivative and double derivative of the equation #f(x)=xe^(x^2)#?

How do you find the equations of the tangents to #5x^24y^2=4# at those points where the curve is cut by #5x2y=4#?

How do you find the factors of #f(z)# over C if #f(z)=2z^3+3z^214z15#?

How do you express #sqrt(2+i)# in polar form?

How do you factorize #9z^2+24z32# over C?

How do you find the value of a if #2i# is a root of #z^32z^2i+az32i=0#?

How do you use Demoivre's theorem to show that #sin6theta=sin2theta(34sin^2theta)(14sin^2theta)#?

How do you write the balanced half equation for the oxidation of methanal (formaldehyde), #CH_2O# to #CO_2#?

How do you simplify #(sina+tana)/(1+cosa)#?

How do you simplify #tanx/(1tanx)+cosx/(sinxcosx)#?