sissakinzaly05
sissakinzaly05
08-08-2016
Mathematics
contestada
In ΔABC, what is the value of cos B?
Respuesta :
Ckaranja
Ckaranja
13-08-2016
[tex] b^{2} = a^{2} + c^{2} -2acCosB[/tex]
Making cos B the subject;
2acCosB=[tex] a^{2} + c^{2} - b^{2} [/tex]
cosB=[tex] \frac{ a^{2} + c^{2} - b^{2} }{2ac} [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 69+ )
Otras preguntas
how do you find the y-intercept in a equation?
a computers CPU and hard drive are found in the
Which one of the following sentence contains a predicate adjective ? A,the air feels damp b,this time I will not fail. C,ancient stones
3^x - 3^(x-1) = 18 then 4^x is equal to
a current of 4A flows in a wire of resistance 60 ohm. calculate electrical energy consumed in 2 min.
why do mammals need more extensive respiratory surface?
How do you determine if the line segments are congruent
There are 3x-2 trees planted in each row of a rectangular Parcel of land. If there are a total of 24x-16 trees planted and the parcel, how many rows of trees a
George has a small coin collection. He has collected 16 gold coins, 28 silver coins, 32 copper coins, and4 bronze coins. At a flea market, George sells 15% of
Those were the years that I remember best. The bolded words are what kind clauses?
