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3 years ago

Que es el teorema del coseno

Mathematics

2 answers:

aalyn [17]3 years ago

7 0

Answer:

In trigonometry, the law of cosines relates the lengths of the sides of a triangle to the cosine of one of its angles. Using notation as in Fig. 1, the law of cosines states where γ denotes the angle contained between sides of lengths a and b and opposite the side of length c.

Example:

The law of cosines allows us to find angle (or side length) measurements for triangles other than right triangles. The third side in the example given would ONLY = 15 if the angle between the two sides was 90 degrees. In the example, the angle between the two sides is NOT 90 degrees; it's 87.

kakasveta [241]3 years ago

6 0

Answer:

La regla del coseno establece que el cuadrado de la longitud de cualquier lado de un triángulo es igual a la suma de los cuadrados de la longitud de los otros lados menos el doble de su producto multiplicado por el coseno de su ángulo incluido.

Step-by-step explanation:

You might be interested in

Which of the g-values satisfy the following inequality?

sleet_krkn [62]

Answer:

B: g=5

C: g=6

Step-by-step explanation:

Given

$7 \ge 12 - g$

Required

All possible values of g

We have:

$7 \ge 12 - g$

Collect like terms

$7 - 12\ge - g$

$-5\ge - g$

Divide both sides by -1 [The inequality changes because of negative division]

$5\le g$

Swap both terms

$g \ge 5$

This implies that g is greater than of equal to 5

i.e.

$g= \{5,6,7.....\}$

Hence:

(b) and (c) are correct

8 0

3 years ago

What is the value of A when we rewrite (1/8)^x + (1/8)^x-2 as A x (1/8)^x

givi [52]

Answer:

-63

Step-by-step explanation:

Given the expression:

$(1/8)^x + (1/8)^{x-2}$

Using the law of indices, this can be written as:

$(\frac{1}{8})^x-(\frac{1}{8} )^x * (\frac{1}{8})^{-2}\\(\frac{1}{8})^x (1-(\frac{1}{8})^{-2})\\(\frac{1}{8})^x(1-8^2)\\(\frac{1}{8})^x(-63)\\-63(\frac{1}{8})^x\\$

This shows that the value of A is -63

4 0

3 years ago

What are the outputs for an input If x= 5 and the output is y= 3x -4

FromTheMoon [43]

Answer:

Step-by-step explanation:

y=3 × 5 -4

=15-4

this is your answer

5 0

3 years ago

Read 2 more answers

Find the distance along an arc on the surface of the earth that subtends a central angle of 6 minutes (1 minute = 1/60 degree).

bazaltina [42]

Answer:

6.914miles (to 3 decimal places)

Step-by-step explanation:

Length of an arc = θ/360 *2πr

angle subtended by arc at the center of the earth = 6 minutes

1 minute =1/60 degree

6 minute= 6/60 degree =0.1°

θ=0.1°

radius of earth = 3960 miles

distance along the arc = $\frac{0.1}{360}*2\pi *3960$

=6.9142857143miles

3 0

3 years ago

(05.06 MC)

Oksi-84 [34.3K]

<h3>Answer:</h3>

A: see below

B: no

<h3>Step-by-step explanation:</h3>

Part A. The first equation graphs as the area below the dashed line with y-intercept -7 and slope 2.

The second equation graphs as the area above the solid line with x-intercept 6 and y-intercept 3.

The doubly-shaded area representing the solution space is that space approximately the upper-right quadrant of the four sections of the coordinate plane created by the intersection of the lines.

Part B. The point (3, -7) is in the lower-right quadrant of the sections of the coordinate plane described in part A. Thus it is NOT A SOLUTION.

The point (3, -7) fails to satisfy the second inequality. That is ...

-7 ≥ -1/2·3 +3 = 3/2 . . . . is NOT TRUE

In order to be part of the solution space, a point must satisfy <em>both</em> inequalities.

5 0

3 years ago