Question

give is cot A=8 find sin A and sec A

Answer 1

15cotA=8
then cotA=8/15
cotA=base/perpendicular
which means base=8 and perpendicular=15
by pythagoras theoram hypotenes2=perpendicular2+base2
hypotenes.sq=8.sq+15.sq
                     =64+225=289=17
sin(a)=p/hy=15/17
sec(a)=hy/p=17/8