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Himpunan penyelesaian....??? Trigono..?
dari akar 6 sin x - akar 2 cos x = -2 dengan 0<x<2 phi
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- MuktiLv 710 years agoFavorite Answer
k = √((√6)^2 + (√2)^2 ) = 2√2
tanα = √6 / √2 = √3
α = 120
√6 sin x - √2 cos x = -2
2√2 cos(x - 120) = -2
cos(x-120) = - (1/2)√2 = cos 135
x - 120 = 135
x-120 = +- 135 + 360n
x = 275 , 345
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- 10 years ago
wah sudah lupa rumusnya,,,
besok qw carikan rumusnya
kalo ada rumus nya aku bisa ngerjain,,
seenggaknya rumus dasar lah.
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