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If sin A = cos A …

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If sin A = cos A find 2tan^2 A + sin^2 A - 1 .

    • Posted by Aarav Singhania 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Ayush Samal 1 year, 1 month ago

    Sin a =cos a =>Sin a/cos a=1 Then 2tan²a+sin²a-1 =2(sin²a/cos²a)+sin²a-1 =2[ (1)²]+sin²a-1 =2-1+sin²a =1+sin²a. Or. =1+cos²a

    1Thank You

    Ayush Tyagi 1 year, 2 months ago

    If sin A =cos A find 2tan^2A + sin^2 A - 1

    3Thank You

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