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## Related Questions

###### Asked in History, Politics & Society, War and Military History, Texas, Mexico

### Who was the general of the Battle of Gonzales?

General Martín Perfecto de Cos

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###### Asked in Spark Plugs and Wires, War and Military History, Texas, Lawyers

### What did General Cos do in Texas in 1835?

He marched back to Mexico.

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###### Asked in Spark Plugs and Wires, Math and Arithmetic, Definitions

### Who was general cos?

A Mexican general who helped santa Anna fight the Texans in the
TExan Revolution
...

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###### Asked in C Programming

### Why c is called general purpose language?

Cos it is used for different things.

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###### Asked in Math and Arithmetic

### Why does cos x - sin x 0?

In general, it does not, so the question is misinformed.

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###### Asked in Texas

### What was general cos objective when he came into Texas?

To stop the colonists from not obeying the Mexican
requirements.

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###### Asked in Math and Arithmetic, Algebra, Calculus

### 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)
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###### Asked in Math and Arithmetic, Algebra, Trigonometry

### 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'.
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###### Asked in Math and Arithmetic, Calculus, Trigonometry

### Verify that sin minus cos plus 1 divided by sin plus cos subtract 1 equals sin plus 1 divided by cos?

[sin - cos + 1]/[sin + cos - 1] = [sin + 1]/cosiff [sin - cos +
1]*cos = [sin + 1]*[sin + cos - 1]
iff sin*cos - cos^2 + cos = sin^2 + sin*cos - sin + sin + cos -
1
iff -cos^2 = sin^2 - 1
1 = sin^2 + cos^2, which is true,
...

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###### Asked in Math and Arithmetic, Algebra

### Cos x - cos x sin2 x equals cos3x?

cos(x)-cos(x)sin2(x)=[cos(x)][1-sin2(x)]
cos(x)-cos(x)sin2(x)=[cos(x)][cos2(x)]
cos(x)-cos(x)sin2(x)=cos3(x)
...

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###### Asked in Math and Arithmetic, Algebra

### What is cos 495 degree's?

cos(495) = cos(495-360) = cos(135) = -cos(180-135) = -cos(45) =
-sqrt(1/2) or -1/sqrt(2)
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###### Asked in Internet, Online Music

### Why you listen to music?

'cos it's makin' me alive, 'cos it's waking me up 'cos it can relax 'cos it gives me energy.... 'cos I like to dance 'cos I like to sing......

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###### Asked in Math and Arithmetic, Algebra, Geometry

### What is cos of a negative angle?

The cosine function is an even function which means that cos(-x)
= cos(x).
So, if cos of an angle is positive, then the cos of the negative
of that angle is positive and if cos of an angle is negative, then
the cos of the negative of that angle is negaitive.
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###### Asked in Algebra, Calculus, Trigonometry

### What is Cos 2 x divided by cos x?

cos 2x = cos2 x - sin2 x
= 2 cos2 x - 1; whence,
cos 2x / cos x = 2 cos x - (1 / cos x)
= 2 cos x - sec x.
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###### Asked in Math and Arithmetic

### What is cos 295?

Cos 295 fall s in the 4th quadrant where cosine is positive
cos 295 = cos (360-295) = cos 65 = 0.4226
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###### Asked in Trigonometry

### How do you prove this trigonometric relationship sin3A equals 3sinA cos 2 A - sin 3 A?

sin(3A) = sin(2A + A) = sin(2A)*cos(A) + cos(2A)*sin(A)=
sin(A+A)*cos(A) + cos(A+A)*sin(A)
= 2*sin(A)*cos(A)*cos(A) + {cos^2(A) - sin^2(A)}*sin(A)
= 2*sin(A)*cos^2(A) + sin(a)*cos^2(A) - sin^3(A)
= 3*sin(A)*cos^2(A) - sin^3(A)
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###### Asked in Math and Arithmetic, Algebra, Trigonometry

### How do you simplify cos theta times csc theta divided by tan theta?

'csc' = 1/sin
'tan' = sin/cos
So it must follow that
(cos) (csc) / (tan) = (cos) (1/sin)/(sin/cos) = (cos) (1/sin)
(cos/sin) = (cos/sin)2
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###### Asked in Math and Arithmetic, Algebra, Calculus

### What is sec x cos x?

sec x = 1/cos x
sec x cos x = [1/cos x] [cos x] = 1

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###### Asked in Math and Arithmetic, Geometry

### Express cos -155 as a function of a positive acute angle?

Cos(-155) = cos(155) = 1 - cos(180-155) = 1-cos(25).

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###### Asked in Cooking Equipment , Wooden Spoons

### Why was the wooden spoon invented?

cos they were durbrain cos they were durbrain cos they were
durbrain

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###### Asked in Math and Arithmetic, Algebra

### How would you prove left cosA plus sinA right times left cos2A plus sin2A right equals cosA plus sin3A?

You need to make use of the formulae for sin(A+B) and cos(A+B),
and that cos is an even function:
sin(A+B) = cos A sin B + sin A cos B
cos(A+B) = cos A cos B - sin A sin B
cos even fn → cos(-x) = cos(x)
To prove: (cos A + sin A)(cos 2A + sin 2A) = cos A + sin 3A
The steps are to work with the left hand side, expand the
brackets, collect [useful] terms together,...

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###### Asked in Math and Arithmetic, Algebra, Trigonometry

### Express all the trigonometric ratios of cosA?

sin = sqrt(1 - cos^2)tan = sqrt(1 - cos^2)/cos
sec = 1/cos
cosec = 1/sqrt(1 - cos^2)
cot = cos/sqrt(1 - cos^2)
...

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###### Asked in Math and Arithmetic, Proofs, Trigonometry

### How do you verify the identity of cos θ tan θ equals sin θ?

To show that (cos tan = sin) ???
Remember that tan = (sin/cos)
When you substitute it for tan, cos tan = cos (sin/cos) =
sin
QED
...

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###### Asked in Trigonometry

### What is the value of sin A plus cos Acos A (1-cos A) when tan A 815?

When tan A = 815, sin A = 0.9999992 and cos A = 0.0012270 so
that sin A + cos A*cos A*(1-cos A) = 1.00000075, approx.
...

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