Which of the following could be used to find the slope of the line tangent to the curve sin^-1(2x^2 + y^2) = (2/x)+ y^2?

What is the measure of the smallest angle in the diagram? 15 29 32 45

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels