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sin squared

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โˆ™ 2011-08-21 12:38:58
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Q: What is 1 minus cos squared?
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How do you prove that the sin over one minus the cosine minus one plus the cosine over the sine equals zero?

Multiply both sides by sin(1-cos) and you lose the denominators and get (sin squared) minus 1+cos times 1-cos. Then multiply out (i.e. expand) 1+cos times 1-cos, which will of course give the difference of two squares: 1 - (cos squared). (because the cross terms cancel out.) (This is diff of 2 squares because 1 is the square of 1.) And so you get (sin squared) - (1 - (cos squared)) = (sin squared) + (cos squared) - 1. Then from basic trig we know that (sin squared) + (cos squared) = 1, so this is 0.


What is sin squared x minus cos squared x?

Sin squared, cos squared...you removed the x in the equation.


What is 1 minus cos squared tetha?

According to the Pythagorean identity, it is equivalent to sin2theta.


What is sec squared theta times cos squared theta minus tan squared theta?

Tan^2


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)


What is Sin squared x - Cos squared x divided by 1 - Tan squared x equals cos squared x?

22


What equals 1 cos squared x divided by cos squared x?

1. Anything divided by itself always equals 1.


What is sin squared equal to?

Sin squared is equal to 1 - cos squared.


What is cos theta minus cos theta times sin squared theta?

cos(t) - cos(t)*sin2(t) = cos(t)*[1 - sin2(t)] But [1 - sin2(t)] = cos2(t) So, the expression = cos(t)*cos2(t) = cos3(t)


What does cos squared x - Sin squared x equal?

2 x cosine squared x -1 which also equals cos (2x)


Is 1- cos 2 x 1 plus cos 2 x equals sin squared x cos squared x an identity?

No, (sinx)^2 + (cosx)^2=1 is though


What is (1 plus cos x)(1- cos x)?

(1+cosx)(1-cosx)= 1 +cosx - cosx -cos^2x (where ^2 means squared) = 1-cos^2x = sin^2x (sin squared x)


Is a minus b squared the same as a squared minus b squared?

No, unless "a" happens to be equal to 0, or to 1.


Factor sin cubed plus cos cubed?

sin cubed + cos cubed (sin + cos)( sin squared - sin.cos + cos squared) (sin + cos)(1 + sin.cos)


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


What is tan squared theta minus sec squared theta simplified?

tan θ = sin θ / cos θ sec θ = 1 / cos θ sin ² θ + cos² θ = 1 → sin² θ - 1 = - cos² θ → tan² θ - sec² θ = (sin θ / cos θ)² - (1 / cos θ)² = sin² θ / cos² θ - 1 / cos² θ = (sin² θ - 1) / cos² θ = - cos² θ / cos² θ = -1


What is minus 1 squared?

-1² = 1


How to express Sin squared 1 in terms of cos 1?

sin2(1) = 1 - cos2(1) = 1 - [cos(1)]2


How do you solve 2x squared minus 5x minus 3?

2x squared minus 5x minus 3 factored is (2x+1)(x-3).


What is sine squared times cotangent squared times secant squared?

The answer is 1. sin^2 x cos^2/sin^2 x 1/cos^2 cos^2 will be cancelled =1 sin^2 also will be cancelled=1 1/1 = 1


What is Cos squared x equal to?

Cos^2 x = 1 - sin^2 x


How many solutions does cos squared minus two cos equal three?

One solution. (cos x)2 - 2cos x = 3 Factor: (cos x - 3)(cos x + 1)= 0 cos x = {-1, 3} Solve: For cos x = -1, x = 180 deg No solution for cos x = 3


How do you factor 8X squared minus 2X minus 1?

(2x - 1)(4x + 1)


How do you factor A squared minus 1?

It is (A-1)(A+1) when factored


How do you solve the equation cos squared x minus 2sinx?

The information you provided in your question does not include an =. Therefore it is not an equation; it is an expression

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