October 2018 1 73 Report
Jawab beserta caranya :)

Tentukan nilai x yang memenuhi persamaan berikut,untuk 0 \leq x \leq 360^{0} .
a. (sin x +1)(sin x+2)= cos^{2} x
b. 4 sec^{2} x - 9 tan x -1=0

terima kasih :)

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