Question

4 If sin(0) and is in quadrant II , then find 7. (a) cos(0) = (b) tan(O) = (c) sec(0) = (d) csc(0) = (e) cot(0) =

Answer 1

Solution Given that sino = 4 7 o is in quadrant I a) cos(o)= si-sino -6) - 7²_4² 72 = + | 33 F coso = -333 7 because o is in quadrant II b) etan(O)= etan(o)= sino coso 4/7 -333 3/7 o is in quadrant II 2 tan o u -4 o is in quadrant II 33 ) seco) coso 7 o is in 533 quadrant II

d) CSC (0) = = 1 sino 11 7 4 o is in in quadrant II e) Coto= ! tano √33 Hence, if sin o=4 o is in quadrant II, then 7 a) coso -133 7 b) tano - - 4 √33 c) seco = -7 33 d) Esco= 7/4 e) coto - - 4