Just use the formula
sin(a+b) = sina cosb + cosa sinb
A support beam, within an industrial building, is subjected to vibrations along its length; emanating from
two machines situated at opposite ends of the beam. The displacement caused by the vibrations can be
modelled by the equation 𝑓(𝑥) = 3𝑠𝑖𝑛 (2𝑥 +𝜋3). Use the compound angle formulae to expand f(x) as a sum
of sine and cosine
2 answers
You know if I honestly knew... I would not come here for any help.
You are never to no good use, and always hint to something and never assist. But thanks for your time.
You are never to no good use, and always hint to something and never assist. But thanks for your time.
1 answer