Answer:
Step-by-step explanation: explique melhor
I don’t think f would have any value in this equation and f would represent 1 zero??
sin(4π21). Explanation: Notice that this fits the form of the sine subtraction formula: sin(A−B)=sin(A)cos(B)−cos(A)sin(B).
Its B
Hope this helps!
May I have brainliest please? :D
