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Ruth Hand on Ruth's copy of Pythagoras' Theorem: Integers 11 months, 1 week ago

Gave some feedback: Ready to use

Ruth Hand published Trigonometry and forces 11 months, 1 week ago

Ruth Hand on Trigonometry and forces 11 months, 1 week ago

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Ruth Hand created Trigonometry and forces 11 months, 1 week ago

Ruth Hand on Resolve a force into $x$ and $y$ components 11 months, 2 weeks ago

Gave some feedback: Ready to use

Ruth Hand on SOHCAHTOA 11 months, 2 weeks ago

Gave some feedback: Ready to use