Question

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

Answer 1

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

Answer 2

\[\sin( \theta+90)=\sin \theta \cos90 +\sin 90 \cos \]

Answer 3

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

Answer 4

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

Answer 5

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

Answer 6

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

Answer 7

yes I think so

Answer 8

okay then do it it equals 2.8858

Answer 9

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

Answer 10

yup no other simplification to be done