若∠α为锐角,且3(tanα)^2-4根号3(tanα)+3=0,则α的度数?
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若∠α为锐角,且3(tanα)^2-4根号3(tanα)+3=0,则α的度数?
若∠α为锐角,且3(tanα)^2-4根号3(tanα)+3=0,则α的度数?
若∠α为锐角,且3(tanα)^2-4根号3(tanα)+3=0,则α的度数?
3(tanα)^2-4根号3(tanα)+3=0
(3tanα-根号3)(tanα-根号3)=0
tanα=根号3/3,或tanα=根号3
∠α为锐角
α=30°,或α=60°
3(tanα)^2-4根号3(tanα)+3=0
(3tanα-根号3)(tanα-根号3)=0
tantanα=根号3=根号3/3或tanα=根号3
所以α=30°或α=60°