Relating trig function through angle rotations | Trigonometry | Khan Academy

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Thank you for helping me throughout 12 grade

[@deebmonkey23]

You are so brilliant, and so inspiring. Thanks so much for bein' so damned awesome.

[@Dayv7]

Will you be doing any more human biology video's? There were some where you mentioned that you would but I haven't seen any new ones for ages. They were all very good and got me through my entry course. I know need more in depth knowledge so new vids would be great. Love your work and style of the videos!

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Thank you Sal!

[@akanshamishra8022]

Thanks u so much I'm really grateful!!!

[@sumpotes8460]

Hey! Shouldn't it be the length of hypotenuse which should be the magenta line? Please clear this doubt Please respond

[@rubyxdiamond]

coordinates (x, y) = (Cosine, Sine) Cos = x Sin = y So when the triangle shifts with sin(θ+π/2), sinθ becomes the base line on the y axis because of their relationship stated above. And the hypotenuse will always remain 1.

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Filtered

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Amazing

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perfect

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HELL YEAH