Can a triangle be formed by three line segments that intersects other than at their endpoints? Why or why not?

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Find percent notation for 0.008 0.008=

What is the 12th term of b(n)=-4-2(n-1)