28 7/8, write 875/1000 and keep dividing by 5 to get the simplest form
Answer:
tan 4x
Step-by-step explanation:
Note the difference identity for tangent ratio is
tan(x - y) = 
Given
← in the form of the right side of the expansion, thus
= tan(9x - 5x)
= tan 4x
Answer:
Step-by-step explanation: