cofunctioncos((2pi)/5) ·

10 Jul 2024, 00:00

cofunctioncos((2pi)/5) Image to Crop

Find the cofunction of:

cos(π/2)

Show Related Cofunctions:

Trig Function	Cofunction
sin	cos
cos	sin
tan	cot
csc	sec
sec	csc
cot	tan

Cofunction Definition:

Trig measure for:
Angle complement: 90 - θ

Setup cofunction for cos(θ)

cos(θ) = sin(π/2 - θ)

Plug in θ = 2π/5

cos(2π/5) = sin(π/2 - 2π/5)

Determine common denominator in radians

Determine common denominator

We use a common denominator of (5 x 2) = 10

cos(2π/5) = sin(10π/50 - (20π/50))

cos(2π/5) = sin(-10π/50)

Final Answer

cos(2π/5) = sin(-10π/50)

You have 1 free calculations remaining

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What is the Answer?

cos(2π/5) = sin(-10π/50)

How does the Cofunction Calculator work?

Free Cofunction Calculator - Calculates the cofunction of the 6 trig functions: * sin
* cos
* tan
* csc
* sec
* cot

This calculator has 1 input.

What 7 formulas are used for the Cofunction Calculator?

sin(θ) = cos(90 - θ)
cos(θ) = sin(90 - θ)
tan(θ) = cot(90 - θ)
csc(θ) = sec(90 - θ)
sec(θ) = csc(90 - θ)
cot(θ) = tan(90 - θ)

For more math formulas, check out our Formula Dossier

What 11 concepts are covered in the Cofunction Calculator?

anglethe figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. cofunctiontrigonometric identities that show the relationship between trigonometric ratios pairwise (sine and cosine, tangent and cotangent, secant and cosecant).cofunction calculatorcoscos(θ) is the ratio of the adjacent side of angle θ to the hypotenusecotThe length of the adjacent side divided by the length of the side opposite the angle. Also equals 1/tan(θ)cscthe length of the hypotenuse divided by the length of the adjacent side. Also equals 1/sin(θ)gradiandefined as one hundredth of the right angle. This is equal to π/200 or 9/10°radiana unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the radius or approximately 180°/π ~ 57.3 degrees.secthe length of the hypotenuse divided by the length of the adjacent side. Also equals 1/cos(θ)sinsin(θ) is the ratio of the opposite side of angle θ to the hypotenusetanthe ratio of the opposite side to the adjacent side of a particular angle of the right triangle.

cofunctioncos((2pi)/5)

Find the cofunction of: cos(/2) Trig measure for:Angle complement: 90 - cos() = sin(/2 - ) cos(2/5) = sin(/2 - 2/5) We use a common denominator of (5 x 2) = 10 cos(2/5) = sin(10/50 - (20/50))