hii how do you solve (sinθ-1)(5cosθ + 3) = 0
Trigonometric identities Watch
- Thread Starter
- 12-04-2013 10:40
Offline13ReputationRep:PS HelperStudy Helper
- PS Helper
- Study Helper
- 13-04-2013 12:34
- 13-04-2013 13:04
You need to think of this question as a quadratic. You should know that when (X-1)(5X+3)=0 that one of the equations within the brackets are equal to zero, this is because any number multiplied by 0=0. Try it on your calculator if you wish to do so...
So you set either (X-1)=0 or (5X+3)=0
Do you know what to do next?
- 13-04-2013 13:08
actually you do not need any identities for this question...