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If $3 T a n^{4} α - 10 T a n^{2} α + 3 = 0$ then principal values of ‘ $α$ ’ are

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Correct option is B

3tan4α−10tan2α+3=0⇒3tan4α−9tan2α−tan2α+3=0⇒(3tan2α−1)(tan2α−3)=0⇒tan2α=13=132;tan2α=3=(3)2∴α=±300,±600

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If 3Tan4α−10Tan2α+3=0 then principal values of ‘α’ are

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If $3 T a n^{4} α - 10 T a n^{2} α + 3 = 0$ then principal values of ‘ $α$ ’ are