mathematics

Parin Sir > mathematics
11
Jun
Examples 5 to 8

(5) Evaluate :  \textup{log}_{2} ( \textup{log}_{5}

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08
Jun
Examples(1 to 4)

(1) Evaluate :  (i)    \textup{log} _{5} 125                (ii)   

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08
Jun
Antilogarithm

☼ Antilogarithm  :   If  log x  =  y, then  x  =  Antilog ( y ).

How  to Insert  Decimal  Point  ?

▪ Case I  :   When  Characteristic of  lo…

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06
Jun
Properties of Logarithms

☼ Properties of  Logarithms  :

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06
Jun
Logarithm

…

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Posted in: Logarithm,
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05
Jun
Examples 9 to 11

(9) A committee of  4  has to be formed out of  7 boys and  3  girls. Find the probability that it includes at least 1 girl.

Soln. Here,  n  = _{10}\textup{C}... </p> <div class=

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05
Jun
Examples 5 to 8

(5) A bag contains  6  red and  4 white balls. Three balls are drawn at random. Find the probability that they are of  the same colour.

Soln. Let, A  :  Event of  getting two balls of  same colour.

P ( A ) =

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05
Jun
Examples

(1) In a throw of  a coin, find the probability of  getting a tail.

Soln. Here,   S   =   { H, T } ( i.e.  n  =  2 )  and   A   =   { H }  ( i.e.  m  =  1 ).

\ther... </p> <div class=

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05
Jun
Introduction

☼ Probability    :   In a random experiment, let S be the sample space and E be the event. Then, E \subseteq S.  Then, we define  (if  m  =  n…

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05
Jun
difference between mutually exclusive events and independent events

☼  Give the difference between mutually exclusive events and independent events.                                         

mutually exclusive even…

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