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Answered 2014-07-30 22:01:36

The answer is cos A .

cos A = 1/ (sec A)

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0.25 no, 0.25 (or 1/4), is the reciprocal of 4. the reciprocal of 25 is 1/25


1/cos(x)=sec(x). sec is short for secant.


The reciprocal of cosine is secant (short form: sec), which is the hypotenuse length divided by the adjacent length.


It is the cotangent function.


Since sin(a)=opposite/hypotenuse, the reciprocal function is that function which is equal to hypotenuse/opposite. This is "cosecant", or csc(a). The reciprocal of sin(a) is csc(a). I will solve all your math problems. Check my profile for more info.


There are no real life applications of reciprocal functions


No. The inverse of the secant is called the arc-secant. The relation between the secant and the cosecant is similar to the relation between the sine and the cosine - they are somehow related, but they are not inverse functions. The secant is the reciprocal of the cosine (sec x = 1 / cos x). The cosecant is the reciprocal of the sine (cos x = 1 / sin x).


A reciprocal refers to a mathematical expression or function, that when multiplied by a number, the product is always 1. The reciprocal of 23 is 1/23.


Find the cosine of 38 degrees and then find its reciprocal.


The cosecant is the reciprocal of the sine function. Now, the reciprocal of a positive number is positive, and the reciprocal of a negative number is negative.


Cotangent is a trigonometric function. It is the reciprocal of the tangent.


In Mathematics, "reciprocal" defines a quantity or function related to another so that their product is one. 2/3 is the reciprocal of 3/2 and vice versa.


The product of any object and its reciprocal is always the identity. In the case of numbers, 1 (one).


Since period is the reciprocal of frequency, i.e Period = 1/frequency: Frequency = 4 kHz = 4000 cycles/sec Period = 1/(4000 cycles/sec) = 1 sec/4000 cycles = 0.00025 sec/cycle


A reciprocal function will flip the original function (reciprocal of 3/5 is 5/3). An inverse function will change the x's and y's of the original function (the inverse of x<4,y>8 is y<4, x>8). Whenever a function is reflected over the line y=x, the result is the inverse of that function. The y=x line starts at the origin (0,0) and has a positive slope of one. All an inverse does is flip the domain and range.


Trigonometry includes 12 baisic functions. Sine, Cosine, and Tangent are the three most baisic. Each of those functions has a reciprocal. Cosine's reciprocal is Secant, Sine reciprocal is Cosecant, and Tangent's reciprocal is Cotangent. Each of those six functions has an inverse funcion called Inverse Sine, Cos etc... or Arcsine, Arcosine, Arcsecant, etc.... The shorthand for each function is sin, caos, tan, sec, csc, cot. The inverses have a -1 notation like sin-1.



sin theta and csc theta are reciprocal functions because sin = y/r and csc = r/y you use the same 2 sides of a triangle, but you use the reciprocal.


mutual or reciprocal relation or relatedness; "interrelationships of animal structure and function



No, they are the inverse functions, while csc, sec and cot are the reciprocal functions. To illustrate the difference, the inverse of f(x) = x+3 is f-1(x) = x-3 But the reciprocal of f(x) is 1/f(x) = 1/(x+3)


I find it convenient to express other trigonometric functions in terms of sine and cosine - that tends to simplify things. The secant function is even because it is the reciprocal of the cosine function, which is even. The tangent function is the sine divided by the cosine - an odd function divided by an even function. Therefore it is odd. The cosecant is the reciprocal of an odd function, so it is naturally also an odd function.


The function sec(x) is the secant function. It is related to the other functions by the expression 1/cos(x). It is not the inverse cosine or arccosine, it is one over the cosine function. Ex. cos(pi/4)= sqrt(2)/2 therefore secant is sec(pi/4)= 1/sqrt(2)/2 or 2/sqrt(2).


The technical definition is "(of a quantity or function) related to another so that their product is one. The reciprocal of a fraction is mostly flipping the fraction Ex. 5/2 the reciprocal would be 2/5, you're mostly just flipping it. A reciprocal is a mathematical term. It is often used in the inverse of multiplication. For example, the reciprocal of 100 is 1/100.


Period = reciprocal of frequencyPeriod = 1 / (2.25 x 10^9 per sec) = 0.44... x 10^-9 sec or 4/9 of a nanosecond.



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