Some trig function question (I think) that I have no idea how to do

[hellohi3654]

Hi just wondering if anyone would be able to help me solve this question

I have tried looking through some stuff about trig functions but cannot find how to solve the question

Any sort of help would be greatly appreciated

Thanks

 

[lev888]

Hi just wondering if anyone would be able to help me solve this question

I have tried looking through some stuff about trig functions but cannot find how to solve the question

Any sort of help would be greatly appreciated

Thanks

Look at sin and cos graphs. Start from x=0 and go right. When does cos value become negative? When does it come close to -1? What about sin value?

 

[Deleted member 4993]

Hi just wondering if anyone would be able to help me solve this question

I have tried looking through some stuff about trig functions but cannot find how to solve the question

Any sort of help would be greatly appreciated

Thanks

Have you learned to use the unit circle?

 

[Steven G]

Which quadrants have sinx>0 and which quadrants have cosx<0. Which quadrant is in the intersection?