- Calculus limit?

Discover Questions

Sigma n = 1 to infinity cos^2na = 1/2(n + (cos(n+1)a sin n a / sina ))? What is inside of the flying UFOs? Sigma n = 1 to infinity cos^2 na = 1/2(n + (cos(n+1)a sin n a / sin na ))? Order the following 5 atoms or ions according to increasing ionization energy. Kr Zn As Br K? In the set of complex numbers, what is √-36?
( ) 6i ( ) - 6i ( ) ± 6i Could someone help me with this question, please?