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Show that Cos38×cos52-sin38×sin52=0

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Show that Cos38×cos52-sin38×sin52=0

    • Posted by Mohit Rawat 6 years ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Vishal Gowtham 6 years ago

    Hi

    0Thank You

    ꧁༒☬Sowndu☬༒꧂???꧁༒????༒꧂ ??? 6 years ago

    Change in 90-theeta and solve now

    0Thank You

    Deepak Silaych 6 years ago

    Cos(90-52)*cos(90-38) - sin(38)*sin(52) = sin(38)*sin(52) - sin(38)*sin(52) = 0 Hence proved

    1Thank You

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