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Prove sec ∅√(1-sin2∅)= 1

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Prove sec ∅√(1-sin2∅)= 1

    • Posted by Muskan .072 5 years, 1 month ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Vaishu ? 5 years, 1 month ago

    LHS= secA√(1-sin²A) [using identity cos²A=1-sin²A] = secA√cos²A = secA.cosA = 1/cosA.cosA =1 = RHS Hence proved.

    0Thank You

    Bishwajeet Kumar 5 years, 1 month ago

    Here LHS=secA√(1-sin²A) Since 1-sin²A=cos²A and secA=1/cosA =1/cosA√cos²A=1/cosA *cosA=1=RHS HERE I TAKE A FOR THITHA

    1Thank You

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