Math, asked by owaisshariff2005, 10 months ago

(cosecA-sinA) (secA-cosA)=1/tanA+cotA​

Answers

Answered by Anonymous
19

★Hope it will help you....!!!!

Attachments:
Answered by 3CHANDNI339
88

 \underline \mathbb{SOLUTION}

 =   > ( \frac{1}{ \sin(a)  }  - sina)

 =  > ( \frac{1 -  {sin}^{2}a }{sina}  )  \times ( \frac{1 -  {cosa}^{2} }{cosa} )

 =  >  \frac{cos {a}^{2} }{sina}  \times  \frac{sin {}^{2} a}{cos}  = sina \times cosa

 \bold\green{\underline{Now,Rhs,}}

 =  >  \frac{1}{tana + cota}  =  \frac{1}{ \frac{sina}{cos}  +  \frac{cosa}{sina} }

 =  >  \frac{1}{ \frac{sin {a}^{2} +  {cos}^{2} a }{?}  }  =   \frac{sinacosa}{ {sin}^{2} a +  {cos}^{2} a}

 \frac{sina  \times cosa}{1}

 \bold\red{\underline{LHS=RHS}}

 \bold\green{\underline{Hence\:Proved}}

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