Math repost

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I posted this question before at 7:14
I think the answer to it is 0.
cot(40) - ((sin(50))/(sin(40)) = ?
these are also degrees
steps too please.

I thought since 50+40= 90 then that part would be 1, but then how would cot 40 turn out to be 1

  • Math repost -

    sin50=cos40

    then

    ctn(40)-cos/sin= ctn(40)-ctn(40)=zilch

  • Math repost -

    thank you, now I understand

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