Question

find the exact value of sin(5pi/12). i really need to check my work because something went wrong

Answer 1

0.022

Answer 2

i need to find the exact value though

Answer 3

yeah its the exact one.... 0.02283274 :-)

Answer 4

as in I need to apply trig addition identities

Answer 5

5*pi/12 radians = 5*pi/12 * 180 / pi degrees = 75 degrees.
sin(75) = sin(45 + 30)
Use trig addition identity to expand sin(45 + 30).

Answer 6

sin(A+B) = sin(A)cos(B) + cos(A)sin(B)

Answer 7

yes i used that in radians. but i apparently got the wrong answer