Math, asked by ankit297yadav, 5 months ago

sin a + sin ß
upon
cos a + cos ß

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का मान है



Answers

Answered by mirbasit243
0

Answer:

 \frac{{ \sin(a)  +  \sin(b) }}{ \cos(a)  +  \cos(b) }

 =  \frac{2 \sin( \frac{a + b}{2} )  \cos( \frac{a  -  b}{2} )}{2 \cos( \frac{a + b}{2} ) \cos( \frac{a - b}{2} )  }

 =  \frac{ \sin( \frac{a + b}{2} ) }{ \cos( \frac{a + b}{2} ) }

 =  \tan( \frac{a + b}{2} )

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