Math, asked by abin2005john, 8 months ago

prove that (1+cotA-csecA)(1+tan A + sec A)=2​

Answers

Answered by ratipardeshi04
1

Step-by-step explanation:

(1 +  \frac{ \cos( \alpha ) }{ \sin( \alpha ) }  -  \frac{1}{ \ \sin( \alpha )} )(1 +  \frac{ \sin( \alpha ) }{ \cos( \alpha ) }  +  \frac{1}{ \cos( \alpha ) } )

(1 +  \frac{ \cos( \alpha ) - 1 }{ \sin( \alpha ) } )(1 +  \frac{ \sin( \alpha ) + 1 }{ \cos( \alpha ) } )

 (\frac{ \sin( \alpha ) +  \cos( \alpha )  - 1 }{ \sin( \alpha ) } )(  \frac{ \sin( \alpha ) +  \cos( \alpha )  + 1 }{ \cos( \alpha ) } )

 \frac{( { \sin( \alpha )  +  \cos( \alpha ) })^{2} -  {1}^{2}  }{ \sin( \alpha )  \cos( \alpha ) }

( { \sin( \alpha ) }^{2}  +  { \cos( \alpha ) }^{2}  = 1)

 \frac{1 + 2 \sin( \alpha )  \cos( \alpha )  - 1}{ \sin( \alpha )  \cos(  \alpha ) }

 = 2

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