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3 years ago

Which of the following best explains why cos2pi/3 is not equal to cos5pi/3?

Mathematics

2 answers:

const2013 [10]3 years ago

6 0

Answer: the angles do not have the same reference angle.

Step-by-step explanation:

NNADVOKAT [17]3 years ago

3 0

Answer:

it is B) Cosine is negative in the second quadrant and positive in the fourth quadrant.

Step-by-step explanation:

just took the test on edg:)

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Solve for brainlist :)

svlad2 [7]

Answer:

option A is correct

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4 0

2 years ago

If f(x)=ln(sin(2x)), f''(π/4) is equal to

Licemer1 [7]

Use the chain rule to compute the second derivative:

$f(x)=\ln(\sin(2x))$

The first derivative is

$f'(x)=(\ln(\sin(2x)))'=\dfrac{(\sin(2x))'}{\sin(2x)}=\dfrac{\cos(2x)(2x)'}{\sin(2x)}=\dfrac{2\cos(2x)}{\sin(2x)}$

$f'(x)=2\cot(2x)$

Then the second derivative is

$f''(x)=(2\cot(2x))'=-2\csc^2(2x)(2x)'$

$f''(x)=-4\csc^2(2x)$

Then plug in π/4 for x :

$f''\left(\dfrac\pi4\right)=-4\csc^2\left(\dfrac{2\pi}4\right)=-4$

4 0

3 years ago

Help with this question

Marat540 [252]

Lxwxh using your numbers its 3x3x3 or 3³ so your answer is 27

4 0

2 years ago

Read 2 more answers

11.447 is greater than 11.473

Stells [14]

No 11.473 is greater then 11.447

8 0

3 years ago

in a study evaluating the relationship between stress and muscle cramps, half the subjects are randomly assigned to be exposed t

stiks02 [169]

The study creates stress in a(0ne) way that might affect muscle cramps.

What is muscle cramps ?

Overuse of a muscle, dehumidification, muscle strain or simply holding a position for a prolonged period can beget a muscle cramp. In numerous cases, still, the cause is not known.
Although utmost muscle cramps are inoffensive, some may be related to an beginning medical condition, similar as shy blood force.
Cramps can have causes that are not due to underpinning complaint. exemplifications include dehumidification, emphatic exercise or lack of muscle use. Muscle cramps are unforeseen muscle condensation.
Also called muscle spasms or charley nags, a muscle cramp can be a common symptom of numerous effects, like exercise strain or a medical condition. Muscle cramps generally go down without treatment and can be watched for at home.

The study creates stress in a(0ne) way that might affect muscle cramps. If an elevator falls, fleetly and stops suddenly, that could affect muscle cramps more because of the physical action than by the stress it convinced. I don’t suppose this trial would help answer whether there's a unproductive relationship between increases stress and muscle cramps.

Learn more about muscle cramp here:

brainly.com/question/19064082

#SPJ4

7 0

1 year ago