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14y ago

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What is the cofunction of cos 70?

The cofunction of cosine is sine. Therefore, the cofunction of (\cos 70^\circ) is (\sin(90^\circ - 70^\circ)), which simplifies to (\sin 20^\circ). Thus, (\cos 70^\circ = \sin 20^\circ).


What is the cofunction of the complement of cos 89o?

The cofunction of the complement of cos 89° is sin 1°. This is because the complement of 89° is 1° (90° - 89° = 1°), and the cofunction identity states that (\cos(θ) = \sin(90° - θ)). Therefore, (\cos(89°) = \sin(1°)).


Evaluate the expression sine 30 degree cosecant 30 degree?

Sin(30) + cosec(30) = sin(30) + 1/sin(30) = 0.5 + 1/0.5 = 0.5 + 2 = 2.5


What is equivalent to sin 210 degree?

Sin -30


What is Sine in a 30-degree-angle?

sin(30) = 1/2


A 30-60-90 triangle has a hypotenuse of length 44. What is the length of the side opposite the 30 degree angle?

I assume your 90 degree angle is on the right and the 30 degree angle is opposite that. ( degree mode ) sin theta = opposite/hypotenuse sin 30 degrees = opp./44 = 22


What is the sin of a 30 degree angle?

sin30 is 1/2 or 0.5


What is the cofunction identity of cos t?

The cofunction identity for cosine states that the cosine of an angle is equal to the sine of its complement. Specifically, this can be expressed as (\cos(t) = \sin\left(\frac{\pi}{2} - t\right)) in radians or (\cos(t) = \sin(90^\circ - t)) in degrees. This relationship highlights the complementary nature of the sine and cosine functions.


How do you solve the following identity sec x - cos x equals sin x tan x?

sec x - cos x = (sin x)(tan x) 1/cos x - cos x = Cofunction Identity, sec x = 1/cos x. (1-cos^2 x)/cos x = Subtract the fractions. (sin^2 x)/cos x = Pythagorean Identity, 1-cos^2 x = sin^2 x. sin x (sin x)/(cos x) = Factor out sin x. (sin x)(tan x) = (sin x)(tan x) Cofunction Identity, (sin x)/(cos x) = tan x.


What rise does a 30 degree angle give over 5 m?

5*sin(30) = 2.5 metres.


The lentgh of the hypotenuse of a 30 -60 degree right triangle is 7.5 meters find the length of the opposite side of the 30 degree angle?

It is: 7.5*sin(30) = 3.75 meters


The shorter leg of a 30-60-90 degree triangle is 6 what is the length of the other leg?

Use the Sine rule. If L is the length of the longer leg, then L/sin(60) = 6/sin(30) So that L = 6*sin(60)/sin(30) = 12*sin(60) = 12*sqrt(3)/2 = 10.39 units.