<https://www.doubtnut.com/question-answer/if-tana-bsqrt3andsina-b1-2then-find-the-value-of-tan-2a-3b-32536585>
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<https://www.doubtnut.com/question-answer/if-tana-bsqrt3andsina-b1-2then-find-the-value-of-tan-2a-3b-32536585>