To draw the graph for any function, we need to take some positive and negative values of then find the corresponding values of And make the line or curve [...]

January 20, 2016

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GRAPH OF FUNCTIONS

To draw the graph for any function, we need to take some positive and negative values of then find the corresponding values of And make the line or curve [...]

January 20, 2016

Integrate root cos2x divided by sinx with respect to x

Let Differentiate both sides w.r.t x Let Equating coefficient both sides, we get On solving above equations

December 7, 2015

PROPERTIES OF LOGARITHM

Logarithms are very useful for lengthy calculation. There are two types of logs: (1) log (2) ln (Natural log) (1) The base is 10 in log (2) The base is [...]

November 17, 2015

WHY sin x AND cosec x ARE POSITIVE IN SECOND QUADRANT?

जब भी मै बच्चो से पूछता हूँ कि sin x and cosec x, IInd quadrant में positive क्यों होता है? cos x and sec x, IVth में और tan x and cot x IIIrd में? हमेशा [...]

October 12, 2015

TRIGONOMETRY FORMULAE

Trigonometry Formulae: Don’t try to remember just know the concept of derivation With the help of sin (A + B), we can derive all the remaining [...]

May 21, 2015

MULTIPLICATION TECHNIQUES

Let us consider two digit numbers ab and cd. For example: 23 × 45 Now, Now, we can try in one step.

May 14, 2015

OPERATIONS ON SETS

(1) Union of Sets: The union of two sets A and B is the set of all the elements which are either in A or in B or in both A and B. It is denoted by . Let [...]

April 24, 2015

LAWS OF SET OPERATIONS

(1) Idempotent laws : (2) Identity laws: (3) Commutative laws: (4) Associative laws: (5) Distributive Laws: (6) De-Morgan’s Laws:

April 22, 2015

CARDINAL NUMBER OF SETS

Some important results derived from Venn diagrams are as follows: A, B and C are three sets. A and B are disjoint sets.

April 22, 2015

VENN DIAGRAM

The pictorial representation of sets is called Venn diagram. The universal set is represented by a rectangular region and its subsets by circles inside the [...]

April 21, 2015

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