cot(15)=1/tan(15)
Let us find tan(15)
tan(15)=tan(45-30)
tan(a-b) = (tan(a)-tan(b))/(1+tan(a)tan(b))
tan(45-30)= (tan(45)-tan(30))/(1+tan(45)tan(30))
substitute tan(45)=1 and tan(30)=1/√3 into the equation.
tan(45-30) = (1- 1/√3) / (1+1/√3)
=(√3-1)/(√3+1)
The exact value of cot(15) is the reciprocal of the above which is:
(√3+1) /(√3-1)
There is no value cot 0, because cot 0 is equivalent to 1 / tan 0, which is equivalent to 1 / 0, which is undefined. That said, the limit of cot x as x approaches 0 is infinity.
Yes; a line at 45 degrees.
The exact value is an irrational number, and can't be written on paper with digits.0.34202 is less than 0.000042 percent wrong.Cos(70 deg) is an irrational number and it is impossible to give its exact value.
SQRT(3)/4 - 1/4
Yes, that happens with any continuous function. The limit is equal to the function value in this case.Yes, that happens with any continuous function. The limit is equal to the function value in this case.Yes, that happens with any continuous function. The limit is equal to the function value in this case.Yes, that happens with any continuous function. The limit is equal to the function value in this case.
The trigonometric function of an angle gives a certain value The arc trigonometric function of value is simply the angle For example, if sin (30 degrees) = 0.500 then arc sine ( 0.500) = 30 degrees
2.61
Trigonometric functions are defined from a numeric domain to a numeric range. So the input number determines whether or not the function is defined for that value and, if so, what the value of the function is.
It is 0.1734
The fact that the same value is obtained when the angle in increased or decreased by any multiple of 2*pi radians (360 degrees).
cos(22) is a trigonometric ratio and, if the angle is measured in degrees, its value is 0.9272
Trigonometric functions are calculated using a polynomial approximation. The exact polynomial used may be different on different calculators.
arcsin(1) arccos(0)
Use trigonometric identities to simplify the equation so that you have a simple trigonometric term on one side of the equation and a simple value of the other. Then use the appropriate inverse trigonometric or arc function.
cos(22) is a trigonometric ratio and, if the angle is measured in degrees, its value is 0.9272
The period of trigonometric function is the distance between repetitions of the function. The "x" value of the space it takes to start over.
The value of cos 46 degrees is approximately 0.7193. Cosine is a trigonometric function that represents the ratio of the adjacent side to the hypotenuse in a right triangle. In this case, when the angle is 46 degrees, the cosine value is calculated by dividing the length of the adjacent side by the length of the hypotenuse.