Level 1
Level 2

Regels


9 words 0 ignored

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2sin(x)cos(x)
sin(2x)
cos^2(x)-sin^2(x); 2cosˆ2(x)-1; 1-2sinˆ2(x)
cos(2x)
cos^2(x)+sin^2(x)=1
vergeten regel
1-cosˆ2(x); (1/2)-(1/2)cos(2x)
sin^2(x)
1-sinˆ2(x); (1/2)+(1/2)cos(2x)
cosˆ2(x)
sin(a)cos(b)+sin(b)cos(a)
sin(a+b)
sin(a)cos(b)-sin(b)cos(a)
sin(a-b)
cos(a)cos(b)-sin(a)sin(b)
cos(a+b)
cos(a)cos(b)+sin(a)cos(b)
cos(a-b)