Is the Integral of sin(xy) with Respect to x Equal to -cos(xy) or -cos(x)?

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I just need a check on when integrating sin(xy) with respect to x? Does this become -cos(xy) or -cos(x)

thanks
 
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Neither. y is to be treated as a constant. And from that follows?
 
ok....is it -cos(xy) / y
 
yes that's correct.
 
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