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Q:

यदि $$ sin θ ={20 \over 29}$$,  है  तो sec θ sin θ का मान क्या है?

  • 1
    $$ {20 \over 21}$$
  • 2
    $$ {29 \over 20}$$
  • 3
    $$ {21 \over 20}$$
  • 4
    $$ {21 \over 29}$$
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Answer : 1. "$$ {20 \over 21}$$"

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