Core 3 Trigonometry

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Core 3

Trigonometry

Read this basic introduction to sec, cosec and cot	www.projectalevel.co.uk
and then find out about their graphs.	www.mathsnet.net
Get a list of trig. identities.	www.sosmath.coml
Proof of the addition formula.	library.thinkquest.org
By 980 Abu'l-Wafa knew that sin2x = 2sinxcosx. Do you?	www-history.mcs.st-and.ac.uk
And it's definitely worth working through our favourite site!	www.mathsnet.net