the domain is all real numbers the range is from -1 to +1
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the domain is when the denominator of the problem is set to zero... but i am not sure how to find the range
Use the function to find the image of each point in the domain. The set of values that you get will be the range. If the function is well behaved, you will not have to try each and every value in the domain.
(cosx)^2-(sinx)^2
The domain is, but the range need not be.
integration of (sinx)^1/2 is not possible.so integration of root sinx is impossible