Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2013-01-05 21:02:49

jacks
Member
Registered: 2012-11-21
Posts: 132

Triangle ABC

If the Sides

and Opposites angles of
are varing such a way that Circum-Radius Remain Constant.

Then the value of

options:

(1) 0                (2) a+b+c                      (c) a sin(A)+b sin(B) +c sin(C)                    (d) None of these


Where da,db;bc are derivates of a,b and c

Offline

#2 2013-01-06 20:14:17

Bob
Administrator
Registered: 2010-06-20
Posts: 10,053

Re: Triangle ABC

hi jacks

Where da,db;bc are derivates of a,b and c

'da' is only part of the correct calculus notation here.  What are you differentiating with respect to?

The following may help.  R is the radius of the circumcircle.

Sine rule.

so, for example:

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

Offline

#3 2013-01-17 18:40:54

jacks
Member
Registered: 2012-11-21
Posts: 132

Re: Triangle ABC

Thanks Bobbundy Got it

Offline

Board footer

Powered by FluxBB