Pair :
Two identical or corresponding things that are matched together.
Palindrome Number :
A number that reads the same forward or back ward. Example: 11, 121, 75257, so on.
Parabola :
In conic section parabola is the curve formed from all the points (x, y) that are equidistant from the directrix and the focus.
Parallelopiped :
In three dimensional geometry a parallelepiped is a prism whose faces are all parallelograms.
Parallel Lines :
Parallel lines are lines always same distance apart and never meet each other
Path Ways :
Path ways are laid in big plots, fields and grounds, along breadth wise, length wise and both breadth wise and length wise.
Parallelogram :
A parallelogram is a quadrilateral in which opposite sides are parallel and equal in length. In other words opposite sides of a quadrilateral are equal in length then the quadrilateral is called a parallelogram.
Properties of a parallelogram :
(i) Opposite sides are equal.
(ii) Opposite sides are parallel.
(iii) The diagonal of the parallelogram bisect each other.
(iv) The midpoint of the diagonals will be equal.
(v) Opposite angles of a parallelogram are equal.
Perimeter :
The length of the particular shape is called perimeter.
Parametric Function :
In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two legs.
Product Rule :
The method of differentiation, when we have two x related functions which are multiplying is called product rule of differentiation.
(UV)' = UV' + VU'
Place Value :
Place value of a digit depends on its position or place in the number. Each digit's place has a value of 10 times the place to its right digit.
The numbers, we use today, 0 to 9 which are known as Hindu-Arabic numerals.
Expansion :
In any number, the right most number denotes the one's place. Next number denotes the tens place and left to tens denotes the hundreds.
To read easily the numbers in the standard form, commas are used to separate a group of three digits.
Power Set :
Power set is nothing but the set which contains all possible sub sets of a particular set.
Let us consider a set which has been named as set A. There are “n” numbers of elements in the set A. That is n is the cardinal number of the set A.
Now power set of A is also a set which is having all the possible sub sets of A and that particular set is denoted as P(A).
Since there are n umber of elements in the set A, we will have 2ⁿ elements in the power set of A.
That is,
n[P(A)] = 2ⁿ
Perpendicular Distance :
The length of the perpendicular from the point (x₁,y₁) to the line ax + by + c = 0 is
|(ax_{1} + by_{1} + c)/ v(a^{2} + b^{2})|
Percentage :
Percentage is the way in which we express a number in terms of fraction of 100.
The word "PERCENT" is formed by the combination of the two words "PER" and "CENT".
That means per hundred. Usually, marks scored by the students is represented as percent. That is, how many marks the student has scored out of 100.
Polynomial :
Polynomials is the algebraic topic. An algebraic expression, which have only non negative powers of the variables is called polynomial.
Profit :
If the Selling price of the commodity is more than the cost price, then the business has gained its profit. Therefore formula to calculate the profit is;
Profit = Selling Price - Cost Price
Profit Percentage = (100 X Actual Profit)/Cost Price
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