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Tan45°tan23°tan42°tan67°=1

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Tan45°tan23°tan42°tan67°=1

    • Posted by Shabnam Shaik 1 year, 1 month ago

    Competitive Exams > NDA > Mathematics
    • 2 answers

    Vinayak Airen 10 months ago

    tan45=1 tan23 = 1/tan67 = cot23 tan42= 1/tan48 = cot 48 tan45 . tan23 . tan42 . tan48 . tan67 =1

    1Thank You

    Randheer Chauhan 10 months, 3 weeks ago

    please check.. you missed a term.. either tan46° or cot42°

    2Thank You

    ANSWER
    http://mycbseguide.com/examin8/

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