Use double-angle identities, 2u = 48° to find sin 2u .​

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)

What are the domain and range of the function f(x)=2^x+1

How many terms does the polynomial x^2 y^2 have