Question

Dado tg x= 4/3 e 0 < x < pi/ 2, calcule:
a) sec x
b) cos x
c) sen x
d) cossec x
e) cotg x

Answer 1

tgx = 4/3 ==> co=4, ca=3, hip= 5

a) sec x = hip/ca= 5/3

b) cos x = ca/hip = 3/5

c) sen x = co/hip = 4/5

d) cossec x = hip/co= 5/4

e) cotg x = ca/co = 3/4