⃦⃦❥ཽཽ ⃘Dᖇ.Aᒪᒪ⸙|ྂྂᗩᕼYᗩᖇ❥ཽཽ ⃝⃟➤
@Dr_A_1400
cos(30) = 4cos"(θ) -3cos(θ)=?
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⃦⃦❥ཽཽ ⃘Dᖇ.Aᒪᒪ⸙|ྂྂᗩᕼYᗩᖇ❥ཽཽ ⃝⃟➤ right away.
⃦⃦❥ཽཽ ⃘Dᖇ.Aᒪᒪ⸙|ྂྂᗩᕼYᗩᖇ❥ཽཽ ⃝⃟➤ right away.