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 ( 33+ )
Otras preguntas
Joseph says that there is 5/8 of a pumpkin pie left and 1/2 of a peach pie left. Which is NOT a pair of equivalent fractions for 5/8 and 1/2
Who puts the federal budget together?
Ken paid $12 for two magazines. The cost of each magazine was a multiple of $3 . What are the possible prices of the magazines?
how do the fusion reaction in the sun compare to the fusion occurring in large atars and supernovas
What was Thomas Hunt Morgan's main contribution to science?
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 meters. Determine the acceleration of the car
Elsie would like to take a snowboarding lessons at powder mountain. She has saved $550 for lessons, semi-private lessons cost $45 per lesson and a junior season
If the density of a 35.cm3 block of wood is .85 g./ml calculate the woods mass.
I need help if 12 counters are 3/4of a set then what is the whole set
This is an Algebra Two Honors question: A jeweler has 12 grams of an 80% gold alloy that she wants to strengthen to 92.5%. Write the rational function, P(x), wh
Q&A Platform for Education
Platform Explore for Education
