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If cos A- sin A=1, prove …

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If cos A- sin A=1, prove that cos A+sin A=+-1

    • Posted by Aayushi Attri 6 years, 11 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Anushk Gupta 6 years, 11 months ago

    Sorry for wrong answer

    0Thank You

    Anushk Gupta 6 years, 11 months ago

    Cos A minus sin a is equal to 1 square in both side cos square A + sin square A

    1Thank You

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