Greetings to all.
I having difficulty solving this straight-forward question. Basically, I just don't know what to do next. Here it is:
Q. The acute angle x radians is such that tan x = k, where k is a positive constant. Express, in terms of k,
Now, this comes in 3 parts which are:
(i) tan(pi − x),
(ii) tan[(1/2)pi − x],
(iii) sin x.
I'm stuck because I don't know how to proceed. Like in part (i), I write:
tan (pi-tan^-1(k) ),
tan.pi - k.
I just end up with the question, the only difference being that instead of x, there's k. How should I satisfy the question's demand?