shakirabreeding shakirabreeding

02-04-2018
Mathematics

contestada

The law of cosines a2+b2-2abcosC=c2. Find the value of 2abcosC.

The law of cosines a2b22abcosCc2 Find the value of 2abcosC class=

Respuesta :

dpokharnaotzjgn dpokharnaotzjgn

02-04-2018

A = 4
B = 3
C = 2

We need to find cos(C)

[tex]4 = 16 + 9 - 2(2)(3)(cos(C)) [/tex]
[tex]-21 = -12 * cos(C)[/tex]
[tex]cos (C)= 1.75[/tex]

The answer is [tex]2 * 3 * 4 * 1.75 [/tex] = 42

Answer Link

Otras preguntas

How to answer the question

two ways you could solve 20=5(-3+x)

Find the graph of y=3/4-2

6500 is what percent of 32,500?

Determine the type of quadrilateral shown below

How many times is the word privacy mentioned in the constitution (including the articles and amendments)?

what volume does 18.0g of bromine occupy?

Im Saud Sarabia, up to 60% of university students are women, but women make up less than 5% of the country’s workforce (TRUE OR FALSE)

Which best describes Henry clays American system?

When a college has been certified of competence, authority, and credibility, it is a(n) _____ college. a. middle b. accredited c. early d. four-year?