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Q: What is the reciprocal of a cosine?

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Reciprocal of Cosine is Secant

Cosine.

Cosine.

it would be secant, 1/cosine

Basically we have two. One is sine and the other is cosine Right from these two we can get tangent Reciprocal of sine is cosecant Reciprocal of cosine is secant Reciprocal of tangent is cotangent

You can calculate the cosine and then its reciprocal.

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

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

cosecant = 1/sine secant = 1/cosine cotangent = 1/tangent

The secant of an angle is the reciprocal of the cosine of the angle. So the secant is not defined whenever the cosine is zero That is, whenever the angle is a multiple of 180 degrees (or pi radians).

The sine of an angle is the cosine of its complement and conversely. The tan of an angle is the reciprocal of its complement.

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.

It is cosine*cosine*cosine.

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.

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).

The inverse of sine (sin) is cosecant (csc). The inverse of cosine (cos) is secant (sec). The inverse of tangent (tan) is cotangent (cot).

Sine and cosine are cofunctions, which means that their angles are complementary. Consequently, sin (90° - x) = cos x. Secant is the reciprocal of cosine so that sec x = 1/(cos x). Knowing these properties of trigonometric functions, among others, will really help you in other advance math courses.

what is the cosine of 3.14 ?

Cosine of 1 degree is about 0.999848. Cosine of 1 radian is about 0.540302.

The inverse of the cosine is the secant.

Cosine 0 is 1

Cosine is 0.995

Cosine is 0.766

Cosine of -90 is 0.

Cosine is a trigonometrical function.