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Therefore since the trig equation we are solving is sin and it is positive (0.5), ... From the graph of the function, we can see that we should be expecting 2 solutions: ...
The graphs of sine and cosine are included as well. ... Each trigonometric function also has an inverse that can be used to find an angle from a ratio of sides.
Trigonometry - Edexcel Trigonometric graphs - Higher The three trigonometric ratios; sine, cosine and tangent are used to calculate angles and lengths in right-angled triangles.
I'm talking about trigonometry, of course: that bastion of angles and triangles that is essential to calculating velocity, momentum, and much more.
Students are taught the "unit circle" and its relationship to trigonometry, but many fail to make the leap on how crucial circles are for trig functions. With static graphs and equations, it's ...
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