Question

given f(x)= sin x find f(pi) f(2pi/3)

Answer 1

oooooooooooooo

Answer 2

a comma between the two, they are two seperate questions

Answer 3

\( f(\pi) \) means replace x with π in sin(x)

can you erase the x, and put in π instead ?

Answer 4

sin pi and conver pi radians to degrees?

Answer 5

or you have memorized sin of angles in radians (which is useful)

(But I generally think degrees).

Answer 6

cool
so 0?

Answer 7

for sin(pi)= sin(180) = 0

Answer 8

nice thx

Answer 9

im getting a weird answer for the second part

Answer 10

plz phi come back

Answer 11

sin 2pi/3?

Answer 12

2pi/3 is 120 degrees

the "reference angle" is from the x-axis, = 60 degrees

you should memorize sin(60)
in the 2nd quadrant, sin will be positive