Kurang ngerti Tolong bantuin ya

X = √r² – y²
x = √130² – 50²
= √16900 – 2500
x = √14400
x = 120

r = 130

y = 50

COS Q = x/r = 120/130 = 12/13

SEC Q = 1/COS Q = 13/12

SIN Q = y/r = 50/130 = 5/13

TAN Q = y/x = 50/120 = 5/12

SEC Q x SIN Q + TAN Q
= 13/12 x 5/13 + 5/12

= 5/12 + 5/12

= 10/12

= 5/6