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In trigonometry, theta is a symbol commonly used to represent an unknown angle in the same way you might use x to label an unknown side or an unknown number in general. Theta looks like this: θ

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Q: What is meaning of theta in cos theta?
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Related questions

What is cos theta times cos theta?

Cos theta squared


What is cos 360 minus theta?

- cos theta


How do you solve theta if cos squared theta equals 1 and 0 is less than or equal to theta which is less than 2pi?

cos2(theta) = 1 so cos(theta) = ±1 cos(theta) = -1 => theta = pi cos(theta) = 1 => theta = 0


How do you simplify tan theta cos theta?

Remember that tan = sin/cos. So your expression is sin/cos times cos. That's sin(theta).


De Morgan's law in complex number?

(Sin theta + cos theta)^n= sin n theta + cos n theta


What is the identity for tan theta?

The identity for tan(theta) is sin(theta)/cos(theta).


What is sec theta - 1 over sec theta?

Let 'theta' = A [as 'A' is easier to type] sec A - 1/(sec A) = 1/(cos A) - cos A = (1 - cos^2 A)/(cos A) = (sin^2 A)/(cos A) = (tan A)*(sin A) Then you can swap back the 'A' with theta


What is cos theta multiplied by csc theta?

It is cotangent(theta).


What is Cos Theta minus Cos Theta?

Zero. Anything minus itself is zero.


How do you solve cos theta subtract cos squared theta divide 1 plus cos theta?

The question contains an expression but not an equation. An expression cannot be solved.


If cos and theta 0.65 what is the value of sin and theta?

You can use the Pythagorean identity to solve this:(sin theta) squared + (cos theta) squared = 1.


In which quardant are the terminal arms of the angle lie when sin thita is less then zero and cos thita is greater then zero?

The fourth Across the quadrants sin theta and cos theta vary: sin theta: + + - - cos theta: + - - + So for sin theta < 0, it's the third or fourth quadrant And for cos theta > 0 , it's the first or fourth quadrant. So for sin theta < 0 and cos theta > 0 it's the fourth quadrant