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Q:

यदि 3 tan θ - 4 = 0 और 180° < θ < 270° तो cosec θ = _______

  • 1
    $$- {5\over4}$$
  • 2
    $$ {4\over5}$$
  • 3
    $$ -{4\over5}$$
  • 4
    $$-{5\over4}$$
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Answer : 1. "$$- {5\over4}$$"

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