Math, asked by simran2974, 8 months ago

It cosec thita = 13/12

find the value of cot thita+tan thita​

Answers

Answered by atharv2303
4

Answer:

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Answered by Anonymous
6

Answer:

169/60

Step-by-step explanation:

For simplicity, let's assume angle theta to be equal to angle alpha.

Now, it's given that,

 \csc( \alpha )  =  \frac{13}{12}

To find the value of ,

 \cot( \alpha )  +  \tan( \alpha )

From the question, we have,

 \csc( \alpha )  =  \frac{13}{12}

But, we know that,

  • cosec@ = 1/sin@

Therefore, we will get,

 =  >  \frac{1}{ \sin( \alpha ) }  =  \frac{13}{12}  \\  \\  =  >  \sin( \alpha )  =  \frac{12}{13}

Now, we know that,

  • cos@ = √(1-sin^2@)

Therefore, we will get,

 =  >  \cos( \alpha )  =  \sqrt{1 -  {( \frac{12}{13} )}^{2} }  \\  \\  =  >  \cos( \alpha )  =  \sqrt{1 -  \frac{144}{169} }  \\  \\  =  >  \cos( \alpha )  =  \sqrt{ \frac{169 - 144}{169} }  \\  \\  =  >  \cos( \alpha )  =  \sqrt{ \frac{25}{169} }  \\  \\  =  >  \cos( \alpha )  =  \frac{5}{13}

Therefore, we will get,

 =  >  \tan( \alpha )  =  \frac{ \sin( \alpha )  }{ \cos( \alpha ) }  \\  \\  =  >   \tan( \alpha )   =  \frac{ \frac{12}{13} }{ \frac{5}{13} }  \\  \\  =  >  \tan( \alpha )  =  \frac{12}{5}

Now, we know that,

  • cot@ = 1/tan@

Therefore, we will get,

 =  >  \cot( \alpha )  =  \frac{5}{12}

Therefore, we will get,

 =  >  \tan( \alpha )  +  \cot( \alpha )  =  \frac{5}{12}  +  \frac{12}{5}  \\  \\  =  >  \tan( \alpha )  +  \cot( \alpha )  =  \frac{25 + 144}{60} \\  \\  =  >  \tan( \alpha )   +  \cot( \alpha )  =  \frac{169}{60}

Hence, the required value id 169/60.

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