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If cos theta - sin theta …

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If cos theta - sin theta = √2sin theta . Then prove that cos theta + sin theta =√2 sin theta.....Friends pls try to solve it

    • Posted by Archita Bhattacharjee 7 years, 10 months ago

    CBSE > Class 10 > Mathematics
    • 7 answers

    Archita Bhattacharjee 7 years, 10 months ago

    Thanks friend ?

    1Thank You

    Nandini Yadav 7 years, 10 months ago

    Hope it will help u

    0Thank You

    Nandini Yadav 7 years, 10 months ago

    Cos-sin=√2 sin=>cos2 +sin2-2cos.sin=2sin2=>cos2=sin2+2sin.cos=>(adding cos2 both sides) 2cos2=sin2+cos2+2sin.cos=>(sin+cos)2= √2cos

    0Thank You

    Nandini Yadav 7 years, 10 months ago

    Wait for a while

    0Thank You

    Archita Bhattacharjee 7 years, 10 months ago

    I have done but it's not coming ...Pls show how to solve it

    1Thank You

    Nandini Yadav 7 years, 10 months ago

    Just do squaring both sides

    0Thank You

    Archita Bhattacharjee 7 years, 10 months ago

    Any answer friends ?☺

    0Thank You

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    Posted by Kanika . 4 weeks ago

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