If tanA ,B andC are interior angles of a triangle ABC then show that s

1.	If tanA ,B andC are interior angles of a triangle ABC then show that sin B+C/ 2= cosA/2
Answer» Thanks to alll Pamal your answer is obsoletely right Exercise - 8.3 ka question number 6 h ncert ka A +B+C= 180. B+C = 180-A. Dividing both side by 2 we get, B+C/2=90-A/2. Put value in L.h s sin B+C/2=sin(90-A/2)=cos A/2 ncert se hai bro Question kaha se laii hoo bolo Solve karna ka baad kya melaga Then plzz solve it for me easy to hai Someone solve it for me plzz

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