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In this post, we will checking how to prove a function is one-to-one graphically .Examples and Problems are also given to help the student. This will also answer the question How do you know if the function is one-one how to prove a function is one-to-one graphically We can prove using Horizontal line test. What […]
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Into functions are those functions where range is a subset of the codomain of the functions but range is not equal to co-domain Definition A function f: A-> B is said to be into if every element of B is not image of some element of A under f, i,efor every y ? B, there
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What is Many one Function A many-to-one function is a function in which multiple elements in the domain may map to the same element in the range. In other words, a single element in the range can have more than one preimage in the domain. Definition A function f : A -> B is said
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This post we will see given a function, how to check if it is onto function or not. Lets first start with the definition of the onto functions Definition of onto functions A function f: A-> B is said to be onto(surjective) if every element of B is the image of some element of A
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Here is the Relation and function class 12 formulas What is Relations A relation R from a non-empty set A to a non-empty set B is a subset of the Cartesian product A × B. It “maps” elements of one set to another set. The subset is derived by describing a relationship between the first
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We know that electric field inside a conductor is zero and any charge the conductor may carry shall be distributed on the surface of the conductor. For our discussion consider a conductor carrying charge on its surface again consider a small surface element ds over which we can consider surface charge density ? to be approximately constant.
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Alpha Symbol Physics In this article, we will look into the meaning of the alpha symbol in physics. In physics and other scientific notations, various Greek alphabets are used to represent various physical quantities. Let us now have a look at what does Greek symbol alpha mean in physics. Alpha symbol Lowercase Alpha $\alpha$ Symbol
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In this post ,we will see how we can write all the Trigonometric ratios of angle A in the terms of cot A. Here we would be focusing on acute angle A only Value of sin A in terms of cot A From Trigonometric Identity $cosec^2 A = 1 + cot^2 A$or$\frac {1}{\sin^2 A} =
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