which is valid ?Math.cos(56)or .......

[wei liu]

which is valid ?Math.cos(56)or Math.cos(Math.toRadians(56))orMath.cos(Math.toDegrees(56))

[Junilu Lacar]

Depends on what the units of 56 are. The API JavaDocs clearly state that the arguments for the trigonometric functions are angles in radians.
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Junilu