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OpenStudy (yttrium):
Is there a possibility to compute for the six trigonometric functions of non-special angles without using calculator, or mentally?
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OpenStudy (anonymous):
You can do series expansions of each trig function but it is a long process
OpenStudy (yttrium):
can you just show me one sample?
OpenStudy (anonymous):
sin(x) = x^2/2! +x^4/4! - X6/6! + x^8/8! ...... unitl you have a great estimate of what the answer is. cos is just a shift of 1 so cos(x) = 1 - x^2/2! +x^4/4! - X6/6! + x^8/8! ... this is the taylor series expansion
hartnn (hartnn):
the sin x expansion is incorrect sin x is odd function, consisting of odd powers of x
OpenStudy (anonymous):
your right I was thinking wrong in my head.
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