Question: expsincos and related

Is it possible to set a worksheet or maple up to only express trigonometric functions as sines? This is very helpful for certain exotic coordinate systems. Meaning cos(x)=sqrt(1-sin(x)^2)  and NOT equivalently  adding Pi/2 to the argument cos(x)=sin(x+Pi/2).
It is completely useless and futile to do algsubs, as Maple will later just revert back to cosines, so you want to do it in the headers so output is always expressed as sines in the document by default.

Basically you want to set something in the header of a worksheeet to always use expsincos on output, and then in addition cos(x)=k sqrt(1-sin(x)^2)   k\e{1,-1} on the output.

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