Question

cos x =3 / 5, evaluate sin x -cos x /2 tan x​

Answer 1

Answer:

-0.392569587

Step-by-step explanation:

cos x=3/5

x=cos-1(3/5)

x=53.13010235

sin(53.13010235)=0.8

cos((53.13010235)/2)=0.894427191

tan(53.13010235)=1.333333333

=0.8-((0.894427191)*(1.333333333))

=0.8-1.192569588

=-0.392569587