Given that cot q=-t, t>0 and 0° ≤q≤180° , find, in terms of t,
(a) cosec q
(c) sin(90°-q )
for(b) is it -(-1/t) = -(1/-t) ?? im kinda confused....
also can anyone tell me how to derive the following formulas from the four quadrants mtd....(as i dun want to memorise the formulas)
1) cos(-x)=cos x
2) tan(-x) = -tan x