The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...
Calculate the angle QPR. Give the answer to one decimal place. Label the sides of the triangle \(o\), \(a\) and \(h\). Next choose the correct ratio from \(s^o_h~c^a_h~t^o_a\). In the triangle the ...
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High school students who came up with 'impossible' proof of Pythagorean theorem discover 9 more solutions to the problemJackson and Johnson say there are two ways to present trigonometry and its functions sine and cosine, but these versions are ...
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