Answer:
Step-by-step explanation:
b
Answer:
For producing 90° rotation clockwise abut origin we have to multiply with -i
Step-by-step explanation:
We know that when we multiply with i in an number then it will give 90° counterclockwise rotation
We have to find the quantity after which it will produce 90° clockwise rotation
Generally we take counterclockwise as positive angle and clockwise as negative angle
So basically we have to produce -90° angle
For producing 90° rotation clockwise abut origin we have to multiply with -i
3/4 is the ratio of woodwinds to to brass players
