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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

Formula for volume of a trapezoidal prism?

the volume of a trapezoidal prism is equal to the height times the base area of the trapezoid.

First you find the area of trapezoid h(a+b)/2

h is the height of the trapezoid, not the height of the prism

a is the length of the top

b is the length of the bottom

Then you find the volume of the trapezoidal prism with this formula H*h(a+b)/2

H is the height of the prism.

Multiply H by the area of the trapezoid that you found in step one.

How do you solve 2 z -5 equals 11?

2z - 5 = 11

Add 5 to both sides: 2z = 16

Divide both sides by 2: z = 8

What does x squared minus 2x equal?

x2 - 2x = x(x-2) and that cannot be simplified further.

How long will it take to count to 1 billion?

If you count one number per second, and never stop to sleep or eat or anything, it will take over 31 years.

How do you find taper angle?

The taper angle is the angle where a thread is tapered as it is created. The formula to find it is to subtract the small diameter from the large diameter and multiply by 28, then divide by the length of the taper.

What is the answer of y equals 9x plus 3?

Every different possible value for 'x' gives a different value for 'y'. There are

an infinite number of pairs like that, and every one of them is an "answer".

Here are a few:

X . . . . Y

-3 . . . -24

-2 . . . -15

-1 . . . -6

0 . . . . 3

1 . . . . 12

2 . . . . 21

3 . . . . 30

4 . . . . 39

5 . . . . 48

How do you solve 1 minus cosx divided by sinx plus sinx divided by 1 minus cosx to get 2cscx?

(1-cosx)/sinx + sinx/(1- cosx)

= [(1 - cosx)*(1 - cosx) + sinx*sinx]/[sinx*(1-cosx)]

= [1 - 2cosx + cos2x + sin2x]/[sinx*(1-cosx)]

= [2 - 2cosx]/[sinx*(1-cosx)]

= [2*(1-cosx)]/[sinx*(1-cosx)]

= 2/sinx

= 2cosecx

What is the quotient and remainder if any when 2x cubed plus 5x squared -14x plus 3 is divided by 2x -3 showing work?

The question concerns a cubic (order 3) divided by a binomial (order 1) and so the quotient has order 3 - 1 = 2 and the remainder has order 0 (one less than the denominator).

That is

(2*x^3 + 5*x^2 - 14*x + 3)/(2*x - 3) = A*x^2 + B*x + C + D/(2*x - 3)

Multiplying both sides by 2x - 3 gives

2*x^3 + 5*x^2 - 14*x + 3 = 2A*x^3 - 3A*X^2 + 2B*x^2 - 3B*x + 2C*x - 3C + D

Compare coefficients of x^3: 2 = 2A => A = 1

Compare coefficients of x^2: 5 = -3A + 2B = -3 + 2B => 2B = 8 => B = 4

Compare coefficients of x^1: -14 = -3B + 2C = -12 + 2C => 2C = -2 => C = -1

Compare coefficients of x^0: 3 = -3C + 2D = 3 + 2D => 2D = 0 => D = 0

So, The quotient is (x^2 + 4 x - 1) and the remainder is 0.

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Alternatively you can do the long division by considering the coefficients of the largest power of x - ie dividing the largest power of x (left in the dividend) by 2x (the largest power of x in the divisor) and using that as the value to add into the quotient and to multiply the divisor by before subtracting it (as in a normal long division):

_______________ x² + _4x - 1

_______--------------------------

2x - 3 | 2x³ + 5x² - 14x + 3 ___ ← 2x³ ÷ 2x = x²; put "x²" in quotient

________ 2x³ - 3x² ______________ ←(2x - 3) × x² and subtract

________ ------------

______________ 8x² - 14x ________ ← bring down "- 14x"; 8x² ÷ 2x = 4x; put "+ 4x" in quotient

______________ 8x² - 12x ________ ← (2x - 3) × 4x and subtract

______________ ------------

____________________ -2x + 3 _____ ← bring down "+ 3"; -2x ÷ 2x = -1; put "- 1" in quotient

____________________ -2x + 3 _____ ← (2x - 3) × -1 and subtract

_____________________ ---------

__________________________ 0 _____ ← nothing to bring down, result is 0, so no remainder

(The underscores in the diagram are to help align the workings.)

→ (2x³ + 5x² - 14x + 3) ÷ (2x - 3) = x² + 4x - 1

Is 60-2x equals to 70-4x what is x?

60-2x = 70-4x

60-2x+2x = 70-4x+2x

60 = 70 +2x

60-70 = 70 + 2x - 70

-10 = 2x

x = -10/2 = -5

What value of x makes 10x equals 350 a true statement?

We want to answer the equation 10x = 350

This can be done by dividing both sides by 10. That makes the equation x = 35.

Thus the value of x that makes 10x=350 is 35.

Prove that square of 2 is irrational?

It is not possible to prove something that is not true. The square of 2 is rational, not irrational.