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What is cos of a negative angle?
The cosine function is an even function which means that cos(-x) = cos(x). So, if cos of an angle is positive, then the cos of the negative of that angle is positive and if cos of an angle is negative, then the cos of the negative of that angle is negaitive.
What is the angle for cos equals 0.2874?
What is the angle with a cosine of 0.6946
What is cos in a math problem?
Its a ratio in a right angle triangle, cos angle = adjacent / hypotonuse.
How do you find the diagonal of a rectangle if you know the length and the angle?
You need to use trigonometry cosine (angle) = length/diagonal diagonal = length/cos(angle)
What is Relation between loss angle and Power factor?
Power factor = cos (angle)PF=cos @
Why we use sine angle in cross product while cos angle in dot product?
Because in dot product we take projection fashion and that is why we used cos and similar in cross product we used sin
What is this expression as the cosine of an angle cos30cos55 plus sin30sin55?
cos(30)cos(55)+sin(30)sin(55)=cos(30-55) = cos(-25)=cos(25) Note: cos(a)=cos(-a) for any angle 'a'. cos(a)cos(b)+sin(a)sin(b)=cos(a-b) for any 'a' and 'b'.
Find hypotenuse only using adjacent and angle?
Use trigonometry and the cosine ratio: cos = adj/hyp and when rearraged hyp = adj/cos
How do you find an angle of a triangle with only three sides given?
Use the cosine rule. If a, b and c are the sides with angle A opposite side a, then 2bc*cos(A) = b2 + c2 - a2 so that Angle A = cos-1[(b2 + c2 - a2)/(2bc)]
What is the value of cos(72) to the nearest ten-thousandth?
iF the angle of 72 is measured in degrees, cos 72° ≈ 0.3090 If the angle of 72 is measured in radians, cos 72 rad ≈ −0.9673 If the angle of 72 is measured in gradians, cos 72 grad ≈ 0.4258
What is the cos of angle B?
.385
The cos of a 40ô angle?
7.66
