By using a graph of the unit circle draw the points that have the property that cass = ( 2 ) By looking at the graph , roughly estimates for each such point ( Is there more than one answer to this question for each point ? ) ( 6 ) By looking at the graph , roughly estimate the value of sins for each such point ( c ) It is surely true that sins is a function - that means that sins cannot have more than one value for a given s Explain the apparent contradiction to that fact by the two points which have the property that cass = but have different sines Also explain the apparent contradiction to cass being a function by the fact that there are two values of s which make cass true ( 1 ) By using a graph of cosa , locate some points which have the prop - erty that cost - . By looking at the graph , roughly estimate a for at least four of those points .\f