Prove the trig identity: (tanx/1+secx)+(1+secx/tanx)=2cscx

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2