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This calculator splits up sums and integer multiples that appear in arguments of trigonometric (circular and hyperbolic) functions, and then expands out products of trigonometric functions into sums of powers, using trigonometric identities when possible. Finally, it pulls out the common factors of the expanded result.

Inputs   Help
Expression:  Sin[5*x]
Evaluation: 
Output: 
Syntax:  Yes, please help fix my input into proper Mathematica® syntax.
No help needed. I am familiar with Mathematica®.
 
Note: This syntax helper works only for elementary functions such as Sin, Cosh, ArcTan, Log, and Exp. Members who need to use special functions and characters still need to learn the correct Mathematica® input format from the HELP page. Seasoned Mathematica users may want to turn off this helper to prevent any ambiguity.sss
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