Maths Extension • English Advanced • Biology • Legal Studies • Physics • PDHPE
Maths Extension 2 • English Advanced • Biology • Physics • PDHPE
Atar aim: 97
Desired Course: Physiotherapy
How do we get this equation
Consider the forms of sin(X+Y), sin(X-Y), cos(X+Y), cos(X-Y) upon expansion. Is it possible to combine these to obtain products of the form sin(X)cos(Y), sin(X)sin(Y), cos(X)cos(Y) ?
Now choose X and Y appropriately to put these equations in a "sums to products" form.
PhD (Pure Mathematics) at ANU
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