You can put this solution on YOUR website! Find the domain and range of y=arccos(e^x)
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e^x is always positive.
e^0 = 1
Any exponent of e > 0 --> acos(>1) --> not a real number.
--> upper limit is x=0
No lower limit, domain is -Inf < x <= 0
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acos of e^(negative large numbers) --> pi/2 = range zero to < pi/2
