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Inverse trigonometric functions - Wikipedia, the free encyclopedia
To calculate arcsine, use: To calculate arccosine, use: To calculate arctangent for x near zero, use the continued fraction above. To calculate arctangent for other values of x, use:
ArcSine Engineering Home
ArcSine Engineering, formerly Electrical and Control System Engineering (E&C) was formed in 1978
Arcsine - Calculus 1 - Math Dictionary
Arcsine is the inverse function of sine. If y = sin x, then x = arcsin y.

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Arc Sine

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Arc Sine, in trigonometry, the inverse of the sine function. If the sine of x equals y, for example, then the arc sine of y equals x. Arc sine is often abbreviated sin^-1 or arcsin.