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If 3x=cosec A and 3/x=cot A …

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If 3x=cosec A and 3/x=cot A then find 3( x square minus 1 by x square)

    • Posted by Prachi Gupta 6 years, 8 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Himanshi Sharma 6 years, 8 months ago

    3x=cosecA X=cosecA/3 ----1 3/x=cotA 3=cotA×X 3/cotA=X---------2 3(x^2-1/x^2) =3((cosecA/3)^2-(1/3/cot)^2)---(from1&2) =3(cosec^2/9-1/9/cotA^2) =3(cosec^2/9-cot^2/9) =3(cosec^2-cot^2/9) =3(1/9);--(cosec^2-cot^2=1) =3×1/9 =1/3 answer.. Agar clear naa hua to jase ye step likhe h copy per karke dekho samajh aa jayenge ???

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