Respuesta :

Thckumms

D 0.8

sin^2(x)+cos^2(x)-1

if x=0.6

then 0.6^2+cos(x)=1

cos^2=1-0.36=0.64

cos(x)=±0.8

Answer:

that one

Step-by-step explanation:

becase 1, math. 2, meth. and 4, science