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Cosec2(90-theta)-tan2 theta/2(cos2 48+cos2 42)-2tan2 30 sec2 …

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Cosec2(90-theta)-tan2 theta/2(cos2 48+cos2 42)-2tan2 30 sec2 52 sin 2 38 /cosec2 70 -tan2 20

    • Posted by Jugal Jain 7 years, 5 months ago

    CBSE > Class 10 > Mathematics
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