How do you simplify this? Question attached. I'm lost, any hints or reference to any websites would be greatly appreciated.

Question

azureilai · Answer

attachment

anonymous · Answer

sin(A+b)= sinA cos B +sin B +cos A

anonymous · Answer

$$\sin( \theta+90)=\sin \theta \cos90 +\sin 90 \cos $$

azureilai · Answer

oh ok, so do you basically expand the sine function and then do the multiplication and division?

anonymous · Answer

yes cos90= 0 soo the first part equals zero we have only the second part

azureilai · Answer

ok. I just got this, im not sure if it can be simplified any further

anonymous · Answer

r u allowed to use the calculator u can simplify 0.6/sin12

azureilai · Answer

yes I think so

anonymous · Answer

okay then do it it equals 2.8858

azureilai · Answer

so would it be equal to 2.8858Wcos(angle) as the most simplified form?

anonymous · Answer

yup no other simplification to be done