Question

Se sen x = √3/2 e 0 ≤ x ≤ π/2, determine: 8) Cos x 9) Cotg x 10) Sec x

Answer 1

senx = √3/2 ===> x = 60°

8) Cos x = cos60° = 1/2

9) Cotg x = cotg60= tg30 = √3/3

10) Sec x = 1/cos60 = 1/(1/2)= 2