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Q:

यदि 3 + cos2θ= 3(cot2θ + Sin2θ), 0°<θ<90°,  है तो (cosθ +2sinθ) का मान क्या होगा?

  • 1
    $$ {2\sqrt{3}+1\over {2}}$$
  • 2
    $$ {3\sqrt{2}}$$
  • 3
    $$ {3\sqrt{3}+1\over {2}}$$
  • 4
    $$ {\sqrt{3}+2\over 2}$$
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Answer : 1. "$$ {2\sqrt{3}+1\over {2}}$$"

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