Asked/Added Questions From NCERT:


Question 1. Asked on :20 January 2019:05:01:17 PM

 Who discovered vaccine name the parson .

-Added by Jyoti Srivastva Science » Ch-2

Answer:

Akki chauhan

 Vaccine is discovered by Edward Jenner

-Answered by Akki chauhan On 21 January 2019:09:17:20 AM


Question 2. Asked on :20 January 2019:04:26:01 PM

 भारतीय सविंधान कब लागु हुआ ?

-Added by Shama Khatun Political Science » Ch-2

Answer:

Hitesh kumar

  भारतीय सविंधान 26 जनवरी 1950 को लागु हुआ |

-Answered by Hitesh kumar On 13 April 2019:08:28:00 AM


Question 3. Asked on :16 January 2019:05:34:22 PM

(a2-b2)3+(b2-c2)3+(c2-a2)3(a-b)3+(b-c)3+(c-a)3Simplify this Equation: 

-Added by Shalu Shukla Mathematics » Ch-2

Answer:

Himanshi Verma

 We know,

---> if a + b + c = 0 ; a³ + b³ + c³ = 3abc


We observe,

( a² - b² ) + ( b² - c² ) + ( c² - a² ) = 0

=> ( a² - b² )³ + ( b² - c² )³ + ( c² - a² )³ = 3( a² - b² )( b² - c² )( c² - a² )


Similarly, 

( a - b ) + ( b - c ) + ( c - a ) = 0

=> ( a - b )³ + ( b - c )³ + ( c - a )³ = 3( a - b )( b - c )( c - a )


Now, [ ( a² - b² )³ + ( b² - c² )³ + ( c² - a² )³ ] / [ ( a - b )³ + ( b - c )³ + ( c - a )³ ]

== 3( a² - b² )( b² - c² )( c² - a² ) / 3( a - b )( b - c )( c - a )


= ( a + b )( b + c )( c + a ) <---- Answer..

-Answered by Himanshi Verma On 03 February 2019:04:45:43 PM


 

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