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Topics: Science › Math › Trigonometry
Cosine is defined by the infinite series 1-(x2/2!)+(x4/4!)-+ ..., and sine by x-(x3/3!)+(x5/5!)-+ ..., where ! denotes factorial.
The trigonometric function, tangent, is equal to sine over cosine. It is also...
The trig function secant, written sec ., equals 1/cos. Cosecant, written csc.,...
The sine (abbreviated "sin") and cosine ("cos") are the two most prominent...
To find the cosine algebraically, given a complex number z = a + b i, sin(z) =...
Sine over cosine is a tangent. Do the !
Periodically
In addition to trigonometric ratios, to solve a right triangle you can use the...
Sine theta times tangent theta = sine squared theta divided by cosine theta. You...
Cotangent(Pi) or Cotangent(180) is equal to 0.746998814.