Hint:2. same as above except:
Hint: since we are in the first quadrant, the secant is positive. now note that3.find sec(x) if tan(x)=3/4 and x is in quadrant one.
Hint: factor out the common cosine, you get4. find all real numbers in the interval [0,2pi] that satisfy the equation:
now find ....you should know the values by heart that do this
Hint: note that you have5. same as #4 except:
this is quadratic in (if you let you would have )
thus we can solve this for like a quadratic equation. then we can find what is.