2014年7月8日 · The most common conversion factor from radians to degrees is (180/∏); then we have to multiply (5∏/6) by this factor, and we obtain 150 degrees. Second answer. Upvote • 1 Downvote

2019年12月23日 · cos[2(5π/6] = cos(5π/3) = cos(π/3) = 1/2. Using the half angle formula for cosine, cos 2 (5π/6) = [cos((5π/3)/2)] 2 = [√(1 + cos(5π/3)/2)] 2 = [√(3/4)] 2 = 3/4

2014年7月9日 · 17pi/6 is what you started with. As a mixed fraction, it looks like "2 and 5/6 * pi" (which can also be written as 2 and 5pi/6) Now, look at your unit circle. Count off the 2 pi counter clockwise. 2 pi takes you 360 degrees (full circle), so you are back where you started. Now, continue going counter clockwise and count of 5pi/6.

2020年3月10日 · Graph them on desmos, y = sqrt(3)/3 x in rectangular coordinates and t = pi/6 = 30 degres in polar coordinates... you get the same line Upvote • 0 Downvote

2016年12月9日 · (−5,−5pi/6) because the two angles (pi/6 & -5pi/6) differ by 180 o (p radians), and the r values are opposites. I suggest that you make a quick sketch of the given ray, and then make sketches of the OTHER choices & see if any of them are equivalent.

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2018年11月20日 · The area of a sector of a circle has a formula 1/2r^2*(Central angle) So you have. r = 4. and central angle 5pi/6. 1/2(16)(5pi/6) = (40/6)pi or (20/3)pi

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2014年11月24日 · 2. 5π/6 = 3π/6 + 2π/6 =π/2+π/3.Thus, this angle is in the second quadrant. Hence the reference angle can be found by subtracting the given angle 5π/6 from π.

2016年9月10日 · The angle 5pi/6 is also known as 150 degrees, and so its tangent is negative square root of 3 over 3(in rationalized denominator form). So, can you de-rationalize this and find the correct choice of the answers given?