Math, asked by Rajpurohit251, 11 months ago

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Answered by koushikreddy2004
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Answered by Anonymous
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ACCORDING TO QUESTION

 \frac{ \sin(30) +  \tan(45)  -  \csc(60)  }{ \sec(30) +  \cos(60)   +  \cot(45) }  \\  =  \frac{ \frac{1}{2} + 1 -  \frac{2}{ \sqrt{3} }  }{ \frac{2}{ \sqrt{3} } +  \frac{1}{2}   + 1}  \\  =  \frac{ \frac{ \sqrt{3}  + 2 \sqrt{3}  - 4}{2 \sqrt{3} } }{ \frac{4 +  \sqrt{3} + 2 \sqrt{3}  }{2 \sqrt{3} } }  \\  =  \frac{3 \sqrt{3} - 4 }{3 \sqrt{3}  + 4}  \\ by \: rationalization \\  =  \frac{(3 \sqrt{3}  - 4)(3 \sqrt{3} - 4) }{(3 \sqrt{3} + 4)(3 \sqrt{3}  - 4) }  \\  =  \frac{ {(3 \sqrt{3}) }^{2} +  {(4) }^{2}  - 2(3 \sqrt{3} )(4) }{ {(3 \sqrt{3} }^{2}) -  {(4)}^{2}  }   \\  =  \frac{27 + 16 - 24 \sqrt{3} }{27 - 16}  \\  =  \frac{43 - 24 \sqrt{3} }{11}

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