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Mathematics 7 Online
OpenStudy (abbles):

Can someone explain questions 3 and 4 please?

OpenStudy (abbles):

zepdrix (zepdrix):

Q3 and Q4? :O But it looks like you got them right >.<

zepdrix (zepdrix):

What's the Tangent Half-Angle Identity? Something like this, right?\[\large\rm \tan\left(\frac{x}{2}\right)=\frac{\sin x}{1+\cos x}\]

zepdrix (zepdrix):

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