# What is the formula of expansion?

## What is the formula of expansion?

In binomial expansion, a polynomial (x + y)n is expanded into a sum involving terms of the form a x + b y + c, where b and c are non-negative integers, and the coefficient a is a positive integer depending on the value of n and b. Let us learn more about the binomial expansion formula.

## How many distinct terms are in the expansion XYZW 30?

The Questions and Answers of The number of distinct terms in the expansion of (X + Y + Z + W)30 are :a)4060b)5456c)27405d)46376Correct answer is option ‘B’.

What is the expansion in solid?

In physics, Thermal expansion can be defined as the change in the length, width, height, or volume of any material on changing the temperature. Thermal expansion is very evident in solids as atoms are densely packed. Thermal expansion of solids has loads of applications in day to day life.

### How many terms are in the expansion of X Y N?

There are n+1 terms in the expansion of (x+y)n. The degree (or sum of the exponents) for each term is n.

### What is the expansion of X Y N?

This information can be summarized by the Binomial Theorem: For any positive integer n, the expansion of (x + y)n is C(n, 0)xn + C(n, 1)xn-1y + C(n, 2)xn-2y2 + + C(n, n – 1)xyn-1 + C(n, n)yn. Each term r in the expansion of (x + y)n is given by C(n, r – 1)xn-(r-1)yr-1. Example: Write out the expansion of (x + y)7.

What is thermal expansion class 7?

Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature. All three states of matter (solid, liquid and gas) expand when heated. When a solid is heated, its atoms vibrate faster about their fixed points.

## How do you find the nth term of a binomial expansion?

How To: Given a binomial, write a specific term without fully expanding.

1. Determine the value of n according to the exponent.
2. Determine (r+1).
3. Determine r.
4. Replace r in the formula for the ( r + 1 ) t h \displaystyle \left(r+1\right)\text{th} (r+1)th term of the binomial expansion.

## What is linear expansion of solid?

When something is heated or cooled, its length changes by an amount proportional to the original length and the change in temperature: linear expansion : ΔL=αL0ΔT (α is the coefficient of linear expansion)

What are 2 examples of thermal expansion?

Here are five examples:

• If you have ever tried to unscrew a stuck lid off a glass jar, you’ll appreciate this expansion effect.
• Bridges have a long span and in hot weather the materials that the bridge is made of will expand.
• A liquid, when heated, will expand and can be made to rise up a tube.

### How many terms are in the expansion of XYZ 10?

I need to find the number of coefficients in the expansion (x+y+z)10. I had this exercise on a recent assignment. The answer I gave is: 310=(3+10−110)=(1210)=132, but my tutor says the answer is 66.

### How do you calculate linear expansion?

Linear thermal expansion is ΔL = αLΔT, where ΔL is the change in length L, ΔT is the change in temperature, and α is the coefficient of linear expansion, which varies slightly with temperature. The change in area due to thermal expansion is ΔA = 2αAΔT, where ΔA is the change in area.

How do you find the middle term of expansion?

In this case, the middle term will be the ( 2n + 1)th term. For example, if you are expanding ( x + y ) 2 (x + y)^2 (x+y)2, then the middle term will be the ( 22 + 1) = 2nd term.

## How do you expand a binomial theorem?

The Binomial Theorem In Action To get started, you need to identify the two terms from your binomial (the x and y positions of our formula above) and the power (n) you are expanding the binomial to. For example, to expand (2x-3)³, the two terms are 2x and -3 and the power, or n value, is 3.

## What is the meaning of linear expansion?

Linear expansion means change in one dimension (length) as opposed to change in volume (volumetric expansion). To a first approximation, the change in length measurements of an object due to thermal expansion is related to temperature change by a coefficient of linear thermal expansion (CLTE).

What liquid violates the principle of thermal expansion?

It is important to note that water does not follow the rule of thermal expansion. Water expands when it freezes because the crystalline structure of ice takes up more space than liquid water.

### How many terms are in the expansion of XYZ 100?

Answer. Hey there !!!!!!!!!! So (x+y+z)¹⁰⁰ has ¹⁰²C₂=5656 terms in its expansion .

### How do you find the greatest term in binomial expansion?

Numerically greatest term in the binomial expansion: p=\frac{(n+1)|x|}{|x|+1}.

What are the three types of thermal expansion?

Thermal expansion describes the tendency of an object to change its dimension either in length, area or volume due to heat. Heating up a substance increases its kinetic energy. Depending on the type of expansion thermal expansion is of 3 types– Linear expansion, Area expansion, and Volume expansion.

## How many terms are in XYZ?

Answer. Step-by-step explanation: x + y + z This algebraic expression have three algebraic term.As per definition algebraic expressions with exactly three terms ..

## What is thermal expansion in simple words?

Thermal expansion, the general increase in the volume of a material as its temperature is increased.

How thermal expansion and contraction of solid is used in our daily life?

Thermal expansion and contraction affect the volumes of liquids that are used every day. Cars provide a good example of this. Cold gasoline in a car’s gas tank expands in hot weather. Also, if a car engine is filled with cold liquid coolant, the coolant will warm up and expand when the car is running, and may overflow.

### What is the sum of coefficients in the expansion of 3 2x 99?

Answer. Answer: The sum of Coefficients in the expansion of (3+2x)^99 equal to 2^99.

### What is the SI unit of thermal expansion?

Thermal expansion refers to a fractional change in size of a material in response to a change in temperature. For most materials, over small temperature ranges, these fractional changes… uses the SI unit inverse kelvin (K−1 or 1/K) or the equivalent acceptable non SI unit inverse degree Celsius (°C−1 or 1/°C).

What is numerically greatest term?

Now substituting values of n and x in (i), we get r≤m+f Where m is a positive integer and f is a fraction such that 0≤f<1. When f≠0 Tm+1 is the greatest term, when f=0 TmandTm+1 are the greatest terms numerically and both are equal.

## What are the applications of thermal expansion?

Thermal Expansion – Real-life applications

• ENGINE COOLANT. Another example of thermal expansion on the part of a liquid can be found inside the car’s radiator.
• WATER.
• THE GAS LAWS.
• VOLUME GAS THERMOMETERS.
• JAR LIDS AND POWER LINES.
• EXPANSION JOINTS.
• MERCURY IN THERMOMETERS.
• THE BIMETALLIC STRIP IN THERMOSTATS.

## How do you find the sum of coefficients in a binomial expansion?

The sum of the exponents in each term in the expansion is the same as the power on the binomial. The powers on a in the expansion decrease by 1 with each successive term, while the powers on b increase by 1. The coefficients form a symmetrical pattern.