Not quite sure how to do this, I messed about with it for a bit and got
tan(theta)=0
The answers in the book are 0,90
Any help will be greatly appreciated!
Hello,
$\displaystyle \sin \theta+\cos \theta=1$
Like they said, multiply by $\displaystyle \frac{1}{\sqrt{2}}=\frac{\sqrt{2}}{2}$ :
$\displaystyle \frac{\sqrt{2}}{2} \sin \theta+\frac{\sqrt{2}}{2} \cos \theta=\frac{\sqrt{2}}{2}$
$\displaystyle \cos 45 \sin \theta+\sin 45 \cos \theta=\frac{\sqrt{2}}{2}$
$\displaystyle \sin(45+\theta)=\frac{\sqrt{2}}{2}$