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hi,the value of cos 60 is 1/2
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∙ 14y ago
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How do you find cos 60?
cos(60) = 0.5 The simplest way is to use a calculator.
How do you get angle size of a 60 feet multiply 90 feet?
5400
Evaluate sin30 plus cos60-2tan45?
using the unit circle, sin 30 + cos 60 - 2tan 45 can be solved as follows: = sin 30 + cos 60 - 2tan 45 = [1/2] + [1/2] - [2(1)] = 1 - 2 = -1
The hypotenuse of a 30-60-90 triangle measures 2 feet how long is the short leg of the triangle?
Using the cosine ratio: 2*cos(60) = 1 Answer: 1 foot
What is cos square?
Cos times Cos
Why is sine 30 the same as cosine of 60?
sin(30) = sin(90 - 60) = sin(90)*cos(60) - cos(90)*sin(60) = 1*cos(60) - 0*sin(60) = cos(60).
What is 7 x 60 x cos 60 equals?
cos(60) = 0.57 x 60 x cos(60) = 7 x 30 = 210
What is cos 60 degrees?
cos(60) = -0.95241298
How do you find cos 60?
cos(60) = 0.5 The simplest way is to use a calculator.
What is the cos 60 degrees?
I can answer if you tell me what cos means.
Cos 195 degree use the trigonometry functions of quadrantal angles and special to find the exact value?
cos(195) = cos(180 + 15) = cos(180)*cos(15) - sin(180)*sin(15) = -1*cos(15) - 0*sim(15) = -cos(15) = -cos(60 - 45) = -[cos(60)*cos(45) + sin(60)*sin(45)] = -(1/2)*sqrt(2)/2 - sqrt(3)/2*sqrt(2)/2 = - 1/4*sqrt(2)*(1 + sqrt3) or -1/4*[sqrt(2) + sqrt(6)]
What is the cofunction of sin 30 degree?
cos 60
What is quadrantal angle?
A Quadrantal angle is an angle that is not in Quadrant I. Consider angle 120. You want to find cos(120) . 120 lies in quadrant II. Also, 120=180-60. So, it is enough to find cos(60) and put the proper sign. cos(60)=1/2. Cosine is negative in quadrant II, Therefore, cos(120) = -1/2.
What is a quadrantal angle?
A Quadrantal angle is an angle that is not in Quadrant I. Consider angle 120. You want to find cos(120) . 120 lies in quadrant II. Also, 120=180-60. So, it is enough to find cos(60) and put the proper sign. cos(60)=1/2. Cosine is negative in quadrant II, Therefore, cos(120) = -1/2.
Cos 60 equals and sin 60 equals?
cos60= 1/2 sin60=1.732/2
How do you get angle size of a 60 feet multiply 90 feet?
5400
If the shortest leg of a 30-60-90 triangle has length 3 the height of the hypotenuse is what?
3/cos(60) = 6 units in length
