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Calculus

The branch of mathematics that deals with the study of continuously changing quantities, with the use of limits and the differentiation and integration of functions of one or more variables, is called Calculus. Calculus analyzes aspects of change in processes or systems that can be modeled by functions. The English physicist, Isaac Newton, and the German mathematician, G. W. Leibniz, working independently, developed calculus during the 17th century.

25,068 Questions

How do you factor x to the fourth power minus x to the second power minus 12?

x4 - x2 - 12 = (x2 + 3) (x2 - 4)

And (x2 - 4) = (x + 2) (x - 2)

So the original expression = (x2+ 3) (x + 2) (x - 2)

What is sin 23?

sin(23) = -0.84622040417517

What is an application for a quadratic equation in real life?

A quadratic equation could be used to find the optimal ingredients for a mixture.

Example: if you are trying to create a super cleanser, you could make a parabola of your ingredients, finding the roots of the equation to find the optimal amount for each ingredient.

How do you factor 2x to the second power plus 13x plus 15?

2x^2 + 13x + 15 factored means that the two numbers must multiply to the constant (15) and add to equal the coefficient on the X (13). So it becomes:

(2x + 3) (x + 5). If expanded, 2x*5 = 10x and 3 * x = 3x which add to 13x. And 5 * 3 = 15

What is the solution to x if 4x-62(2x-4)?

There can be no solution since there is no equation (nor inequality) in the question.

Converting square feet to square yards?

The conversion of one yard to feet is three feet per yard. Thus, in a single-dimensioned space, you can simply divide whatever distance is given by 3 to get yards. However, adding a second dimension means you have feet x feet and thus, must convert both dimensions to yards, meaning you have to divide by 3 twice or once by 9.

What is the logarithm of log -1?

Assuming you are asking about the natural logarithms (base e):

log (-1) = i x pi

therefore

log (log -1) = log (i x pi) = log i + log pi = (pi/2)i + log pi which is approximately 1.14472989 + 1.57079633 i

What is the factor expression of x2-9x plus 4 equals 0?

That equation can not be factored. It can however be solved for x:

x2 - 9x + 4 = 0

x2 - 9x + 81/4 = 81/4 - 4

(x - 9/2)2 = 81/4 - 16/4

(x - 9/2)2 = 65/4

x - 9/2 = ± √65 / 2

x = (9 ± √65) / 2

What is the slope of 7x plus 3y equals 9?

Solve for y

3y=-7x+9

y=-7/3x+3

the slope is the coefficient of x

in this case, it is -7/3

2x to the 3 power times 5x to the 3 power?

(2 x3) times (5 x3)= 10 x6

Of course, it could also mean (2x)3 (5x)3 =(8x3 )(125x3 )=1000x6

It all depends on weather you mean the quantity 2x to the third or 2 multiplied by x to the third.

What does the variable y equals mx plus b?

That is the equation of a line.

y = m*x + b

x is a changing variable to plot on the x-axis.

m is the slope of the line, or how slanted the line is.

b is the y-intercept, or where the line crosses on the y-axis.

What is even and odd wave function?

A basic wave function is a sine or cosine function whose amplitude may have a value other than 1.

The cosine function is an even function because it is symmetrical about the y-axis. That is, f(-x) = f(x) for all x.

The sine function is an odd function because it is antisymmetrical about the y-axis. That is, f(-x) = -f(x) for all x.