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Returns the cosine of the specified angle.
Assembly: mscorlib (in mscorlib.dll)
The angle, a, must be in radians. Multiply by Math..::..PI/180 to convert degrees to radians.
Acceptable values of a range from approximately -9223372036854775295 to approximately 9223372036854775295. For values outside this range, the method returns a unchanged rather than throwing an exception.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.