September 2018 1 51 Report
Sin² \frac{5}{6} \pi + cos² \frac{1}{3} \pi =
Diketahui tan x = 2,4 dengan x dalam selang (\pi , \frac{3 \pi }{2} ), maka cos x =
Jika \frac{1}{2} \pi \leq x \leq \pi dan tan x = - a, maka (sin x + cos x)2 sama dengan...
Tolong dijawab semua ya, terima kasih :)

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