713
1213
79156
209156
Correct answer is C
Sin x = 513
0o ≤ x ≤ 90o, (cos x - tan x)
AC2 = AB2 + BC2
132 = 52 + BC2
169 - 25 + BC2
169 - 25 = BC2
144 = BC2
Cos x = AdjHyp = 1213
BC = √144
BC = 12
tan x = oppadj=512
BC = 12
cos x - tan x = 1213−512
144−65156=79156
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