11113
32165
-21665
11213
13165
Correct answer is C
Given cos x = - 513
→ adj = -5, hyp = 13
Pythagoras' rule → hyp2 = Opp2 + adj2
Opp2 = 132 - [-5]2 → 169 - 25
Opp = √144 → 12
tan x = oppadj → - 125
sin x = opphyp → 1213
; tan x - sin x → - 125 - 1213
= - 21665
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