## a1234 one year ago Use an inverse function to write theta as a function of x. I'll draw...

1. a1234

|dw:1443629711573:dw| Is it theta = arccosx/3?

2. Nnesha

cos theta = what ?

3. anonymous

$\cos(\theta)=\frac{x}{3}$$\theta=\cos^{-1}(\frac{x}{3})$