Question

Work out the value of f in the

following equation:
f sin 42° = 2.5
Give your answer to 2 d.p.

Answer 1

f ≈ 3.74

Explanation:

given the equation

f sin42° = 2.5 ( isolate f by dividing both sides by sin42° )

f
`(sin42)/(sin42)` =
`(2.5)/(sin42)` , that is

f ≈ 3.74 ( to 2 decimal places )