Question

Hey there Ms or Mr could you please help me out with this problem? just a heads up, this is my homework assignment and I'm learning about Trig ratios.

Answer 1

As we know that according to tignometric ratios:

`\begin{gathered} \sin x=\frac{perpendicular}{\text{hypotaneous}} \\ \cos x=\frac{base}{\text{hypotaneous}} \end{gathered}`

So according to given diagram we are taking angle A:

So according to angle A

Perpendicular = BC= 8cm

Base = AC=15 cm

Hypotaneous= AB=17cm

Now

`\begin{gathered} \sin A=(8)/(17) \\ \cos A=(15)/(17) \end{gathered}`

So the option B is correct.