Respuesta :
Answer:
a= approx 35.2644
cos(pi/3+a)= approx 0.999998973
Step-by-step explanation:
solve for sin(a)
sin a = (1/sqroot of 3)
arcsin sin(a) = arcsin(1/sqroot of 3)
a= arcsin(1/sqroot 3)
a=approx 35.2644
now substitute a into the cos formula