Please help with the solution of the attached answer of the question.........

Question

vishweshshrimali5 · Answer

attachment

vishweshshrimali5 · Answer

@amistre64 
@Ishaan94 
@mukushla 
@lgbasallote

lgbasallote · Answer

aww why does it need to be downloaded =_=

vishweshshrimali5 · Answer

Why what happened...... ?

vishweshshrimali5 · Answer

For @lgbasallote

vishweshshrimali5 · Answer

would that work now ............ :)

lgbasallote · Answer

...wow... o.O

vishweshshrimali5 · Answer

I want to know how did he get the steps........... FROM TRIGONOMETRY and so on.

lgbasallote · Answer

no idea

vishweshshrimali5 · Answer

@lgbasallote 
iits ok...........

amistre64 · Answer

i never really know why someone else chooses one method over another ....

amistre64 · Answer

but the method he used seems to be all written down

vishweshshrimali5 · Answer

But I don't know how did he get that 2) part...

vishweshshrimali5 · Answer

@mukushla

amistre64 · Answer

im sure hes using thrms/identites that are proven before this problem arises

amistre64 · Answer

what is a radius of a circumcircle?

vishweshshrimali5 · Answer

Well I know about what is circumcircle,,,,,,,,
but what is its radius (i mean formula)  i am sorry

|dw:1343997843196:dw|

vishweshshrimali5 · Answer

@UnkleRhaukus can u pls help me........

@ParthKohli what about u ?

anonymous · Answer

u mean this formulas   $AH=2R \cos A$   and  $HD=2R \cos B \cos C$  ?

vishweshshrimali5 · Answer

yes

unklerhaukus · Answer

i dont think i can help

vishweshshrimali5 · Answer

Its ok...........

vishweshshrimali5 · Answer

@amistre64 ............... Please help...........

@mukushla ....... u too please.....

anonymous · Answer

law of sins

$$\frac{a}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}=2R$$

vishweshshrimali5 · Answer

Ok then ............ 

P.S. R is the radius of circumcentre right ?

anonymous · Answer

yeah|dw:1343998692751:dw|