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Q:

यदि 2sinθ+cosθ= $${7\over3}$$  है, तो (tan2θ-sec2θ)  का मान ज्ञात करें

  • 1
    0
  • 2
    -1
  • 3
    $${3\over7}$$
  • 4
    $${7\over3}$$
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Answer : 2. "-1"

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