# Math Help - Trig Homework help.

1. ## Trig Homework help.

Consider the function below. y = sin(x) + √3cos(x)
(a) Write the function in the form y = A sin(x + C).

(b)
Amplitude = ?
Phase Shift = ?

2. Originally Posted by grob1992
Consider the function below. y = sin(x) + √3cos(x)
(a) Write the function in the form y = A sin(x + C).
Consider $\sin(a+b) = \sin a \cos b+\cos a \sin b$

3. i'm not sure how to plug in the values

4. Use the R-formulae

$Asinx+Bcosx = R[sin(\theta+\alpha)]$

Where $R = A^2+B^2$ and $\alpha=tan(\frac{B}{A})$