Homework SoursePlease can you show all the work not just answer i have post
Please can you show all the work not just answer i have posted a lot of wuestions like these and past individuals would give me wrong answers and not do simplest form.
Solution
<a<3/2
=> /2 <a/2 <3/4
given cosa =-12/13
sin(a/2)=[(1-cosa)/2]
sin(a/2)=[(1-(-12/13))/2]
sin(a/2)=[(25/13)/2]
sin(a/2)=(25/26)
sin(a/2)=5/26
cos(a/2)=-[(1+cosa)/2]
cos(a/2)=-[(1+(-12/13))/2]
cos(a/2)=-[(1/13)/2]
cos(a/2)=-(1/26)
cos(a/2)=-1/26
tan(a/2)= sin(a/2)/cos(a/2)
tan(a/2)=(5/26)/(-1/26)
tan(a/2)=-5
