alee5
alee5
25-11-2016
Mathematics
contestada
i need help with this problem.
Respuesta :
ravenschyld
ravenschyld
25-11-2016
csc^2x-cot^2x=1
Here is why
csc^2x=1+cot^2x
so:
1+cot^2x-cot^2x=1
1=1
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