2015年12月15日 · What is #(pi)/2 # radians in degrees? Trigonometry Graphing Trigonometric Functions Radian Measure. 1 ...

2015年4月26日 · The length of the arc on the circle defined by the angle is denoted s. The radian measure of the angle is the ratio s/r. An angle of 2 radians cuts off an arc of length 2r when …

2015年8月30日 · It is not arbitrary, but it is because of the definition of radian measure. One definition says the radian measure of angle theta is the ratio of arc length s to radius r when …

2015年5月12日 · 2pi radians = 360^o 2 radians = (360/pi)^o -2 radians = -(360/pi)^o In general, to convert radians to degrees, multiply by 180/pi.

2015年5月16日 · In the multiplication, the unit of radians cancels out which leaves the result in terms of degrees. There are #180# degrees in #pi# radians. Therefore, multiplying by #{180 …

2018年4月8日 · #270^@ = (270^@pi)/(180^@) \ \ \"radians"# We now reduce the fraction to its lowest terms: #270/180=27/18=3/2# So: #207^@=(3pi)/2 \ \ \"radians"# The quick method for …

If an angle is twice as big, the arc it cuts off the circle will be twice as long and the measure of this angle will be 2 radians. So, the ratio between an arc and a radius is a measure of a central …

2018年3月15日 · This is not a rational number of degrees, nor a rational multiple of pi radians. We can write: arctan 2 = pi/2 - sum_(k=0)^oo (-1)^k 1/(2^(2k+1)(2k+1)) arctan(2) is an angle in a …

Supplement: pi-2approx 1.14159. Complement: pi/2-2approx -0.4292. (See explanation.) The supplement of an angle x is pi-x, so the supplement of 2 is pi-2approx 1.14159. The …

2018年4月9日 · Multiply by a fraction which represents 1 revolution in both degrees and radians, you will find that 90^@=pi/2 radians To convert from degrees to radians, consider a common …