A. f(x) = sin² x + cos² x untuk x = 30
B. f(x) = tan² x + tan x -1/3√3 untuk x = 7/6π
Salah satunya
B. f(x) = tan² x + tan x -1/3√3 untuk x = 7/6π
Salah satunya
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A.)
f(x) = sin²(x) + cos²(x)
f(30) = (sin(30))² + (cos(30))²
= (½)² + (½√3)²
= ¼ + ¾
= 4/4
= 1
B.)