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Q: What is the cofunction of cos 70?
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What is the cofunction of sin 30 degree?

cos 60


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.


Cot 70 plus 4cos70 equals?

cot 70 + 4 cos 70 = cos 70 / sin 70 + 4 cos 70 = cos 70 (1/sin 70 + 4) = cos 70 (csc 70 + 4) Numerical answer varies, depending on whether 70 is in degrees, radians, or grads.


What is the value of the cos of 70 degrees?

The cosine of 70 degrees is 0.34202014332567.


Is this statement true or falsesin 20° = cos 70°?

true


What does cosine pair 80 degrees with and how do you get it?

sine 10. Use the cofunction with the complementary angle.


How many zeros in 70 million?

7 cos 70 million is 10 times 7 million and 7 million is 7,000,000 and add a 0 behind it to times 10 and it becomes 70,000,000


Why was Garfield important to the 70's?

Garfield is important to the seventys cos hes fat and ginger and there was lots of fat ginger people in the eightys


What is cos square?

Cos times Cos


Is cos squared x the same as cos x squared?

No. Cos squared x is not the same as cos x squared. Cos squared x means cos (x) times cos (x) Cos x squared means cos (x squared)


Cos plus cos plus cos?

3cos


What is this expression as the cosine of an angle cos30cos55 plus sin30sin55?

cos(30)cos(55)+sin(30)sin(55)=cos(30-55) = cos(-25)=cos(25) Note: cos(a)=cos(-a) for any angle 'a'. cos(a)cos(b)+sin(a)sin(b)=cos(a-b) for any 'a' and 'b'.