# Find the exact value of cos 300 degrees. thanks guys cos 300 = 1/2 = 0.500 how do you know? I am supposed to show my work. You ought to know the rule on 30-60-90 triangles. If the hyp is 2, the shorter side is 1, and the longer side is sqrt3. what does that have to do with cos300? Cos(x) = Cos(-x) (1) Cos(x + 360) = cos(x) (2) Cos(300) = (using (2)) cos(-60) = (using (1)) cos(60) = using what

It's easiest to see in terms of the circle definitions of sines and cosines. If you draw a line of length 1 at 60 degrees above the x-axis, the x-component is cos(60 ). If

(. )cos sin. ( (. ) )sin. 2.

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Medelv. - Std.Avv. 0.0. 0.1. 0.2. 0.3 Divided in 20 degrees sectors. sinβ.

## The value of cos of angle $30$ degrees is equal to $\dfrac{\sqrt{3}}{2}$ in fraction form exactly. It is an irrational number and equals to $0.8660254037\ldots$ in decimal form and the same value is considered as $0.866$ approximately in mathematics.

To find cos of another number, please enter the number below and press "Calculate Cos". Thus, \(\sin 300\degree\) is negative, \(\cos 300\degree\) is positive, and \(\tan 300\degree\) is negative. Checkpoint 4.6 . For angles in each of the four quadrants shown below, explain why the indicated trig ratios are positive.

### In grammar, degree refers to one of the three forms used in the comparison of adjectives and adverbs: positive, comparative, and superlative. porcorex/Getty Images The word "degree" is from the Latin de- (down) + gradus (a step). In English

Select degrees or radians in the drop down box and calculate the exact cos 300° value easily. α. Imagine the unit circle: We know that 300∘ is in the fourth quadrant, where cosine is positive. 300∘ has a reference angle of 60∘, since it is 60∘ away from the x -axis. Since cos(60∘) = 1 2, we know that cos(300∘) = 1 2 as well since cos(θ) > 0 in the fourth quadrant.

I am supposed to show my work. You ought to know the rule on 30-60-90 triangles. If the hyp is 2, the shorter side is 1, and the longer side is sqrt3.

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av I Pázsit — Position [cm]. Phase [degrees]. Fig. 1. Phase difference [degrees]. Fig. 2.

If you understand the following definitions of sine, cosine and tangent you will find this whole topic very straightforward!

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### What is the cosine of 300 degrees? Ask for details ; Follow Report by Robtpd 03/16/2014 Log in to add a comment

Enter the cosine value, select degrees (°) or radians (rad) and press the = button. Find the Exact Value sin(300) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the fourth quadrant.

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### The value of cos(30°) is usually referred to as the function of the standard angle in trigonometry or the trigonometric ratio. Alternative Form of cos(30°) In mathematics, there is an alternative format of writing the cos(30°), which is cos(∏/6) (2∏ = 360 degrees.

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## av A Kamb · Citerat av 2 — sustainable emissions budget in order to reach the two-degree target in 2050 and is cos(lat1)cos(lat2)cos(lon1-lon2)], där R är jordens radie. Utsläppen minskade från cirka 300 gram CO2-ekvivalenter per person-km år 1990 till 190 gram.

In forty Find exact values for the sine, cosine, and tangent of 300∘. 300 ∘ . cosine and tangent values of 0, 30, 45, 60 and 90 degrees, How to find sin, cos , tan, Find cos 300, cot 180, sin 1305, sec(-210), csc 750, cos 270, sin(-420). The value of following is cos24° + cos55° + cos 125° + cos 204° + cos300°. A) -1/ 2. B) 1/2. 27 Jan 2019 of sin-cos-tan-cot-sec-cosec from 0 to 360 with angles in degrees and angles in radians.

Fig. 1. Phase difference [degrees]. Fig. 2.