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Do the equations sine plus cosine and sine squared plus cosine squared both equal 1?
Wiki User
∙ 14y ago
No, they do not.
Wiki User
∙ 14y ago
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Law of cosines with a right angle?
The law of cosines with a right angle is just the pythagorean theorem. The cosine of 90 degrees is 0. That is why the hypotenuse squared is equal to the sum of both of the legs squared
What is the value of the angle in which the sine and cosine are equal and both negative?
225 degrees
How many solutions can two unique equations that both have two squared variables?
Four.
Do linear equations contain x squared?
No, linear equations don't have x2. Equation with x and y are usually linear equations. Equations with either x2 or y2 (but never both) are usually quadratic equations.
If you are asked to solve a system of equations in which there is no linear equation to start with you can sometimes begin by isolating and substituting a variable that is squared in both equations.?
true
Law of cosines with a right angle?
The law of cosines with a right angle is just the pythagorean theorem. The cosine of 90 degrees is 0. That is why the hypotenuse squared is equal to the sum of both of the legs squared
For systems in which there is no linear equation you can isolate and substitute a variable that is what in both equations?
squared
What is the value of the angle in which the sine and cosine are equal and both negative?
225 degrees
How many solutions can two unique equations that both have two squared variables?
Four.
Do linear equations contain x squared?
No, linear equations don't have x2. Equation with x and y are usually linear equations. Equations with either x2 or y2 (but never both) are usually quadratic equations.
If you are asked to solve a system of equations in which there is no linear equation to start with you can sometimes begin isolating and substituting a variable that is squared in both equations?
true
If you are asked to solve a system of equations in which there is no linear equation to start with you can sometimes begin by isolating and substituting a variable that is squared in both equations.?
true
If you're asked to solve a system of equations in which there is no linear equation to start with you can sometimes begin by isolating and substituting a variable that is squared in both equations?
true
What does Sin squared x Cos squared x equal?
sin2 x = (1/2)(1 - cos 2x) cos2 x = (1/2)(1 + cos 2x) Multiplying both you get (1/4) (1 - cos2 2x) Which is equal to (1/4) (1 - (1/2) (1 + cos 4x) = (1/8) (2 - 1 - cos 4x) = (1/8) (1 - cos 4x) Or If it is the trigonomic function, sin squared x and cosine squared x is equal to one
Up to how many solutions can there be in a system of two unique equations that both have two squared variables?
4
Is tan squared x equal tan x squared?
Yes. Both expressions are the same.
Compare and contrast equations and inequalities?
Inequalities and equations are both the same because they are both mathematical expression and they both use the same steps EXCEPT for the end. Inequalities and equations are both different because equations have an equal sign, the answer is not an interval, and the answer is a specific answer. Not a range. While inequalities don't have an equal sign, its answer is an interval, and it's answer is in a range.
