First, let's simplify the expression:
sin(360°) = sin(0°) = 0
sin(-390°) = sin(-30°) = -0.5
tg(-765°) = tg(-45°) = -1
Now plug in the values:
(0 - (-0.5)) / -1 = 0.5 / -1 = -0.5
Therefore, sin(360°) - sin(-390°) / tg(-765°) = -0.5.
First, let's simplify the expression:
sin(360°) = sin(0°) = 0
sin(-390°) = sin(-30°) = -0.5
tg(-765°) = tg(-45°) = -1
Now plug in the values:
(0 - (-0.5)) / -1 = 0.5 / -1 = -0.5
Therefore, sin(360°) - sin(-390°) / tg(-765°) = -0.5.