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913

Q:

ΔABC में, θ एक न्यूनकोण है और tanθ, cotθ का तीगुना है । $$ {sin^{2}θ+cosec^{2}θ-{1\over 2}cot^{2}θ}$$ का मान ज्ञात कीजिए।

  • 1
    $$ {23\over 12}$$
  • 2
    $$ {23\over 9}$$
  • 3
    $$ {23\over 11}$$
  • 4
    $$ {23\over 8}$$
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Answer : 1. "$$ {23\over 12}$$"

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