Math, asked by leelu9948012403, 4 months ago

show that (b-c)/(b+c)cot(a)/(2)+(b+c)/(b-c)tan(a)/(2)=2cos ec(b-c)​

Answers

Answered by pbalajikumar2008
0

Answer:

I don't know................

Step-by-step explanation:

.......

Similar questions