Asked by Amy

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
Answered by bobpursley
sin50=cos40

then

ctn(40)-cos/sin= ctn(40)-ctn(40)=zilch
Answered by Amy
thank you, now I understand
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