Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
tanx = 
Consider the left side
← divide terms on numerator/denominator by cotA
= 
= 
= right side , thus proven
Answer:
mint green
Step-by-step explanation:
brainliest?

Total distance covered is equal to ~
- Number of revolutions × circumference
Hence distance covered = 2200 m = 2.2 km
Answer:
4
Step-by-step explanation:
you're just going to plug in 15 where f is so its asking 15-11 which would be four