Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 8 Answered

please solve this

1.(3-2-3-3) x (30+3-1)

  

Asked by avadhutpandav82.8spicertl | 27 May, 2020, 10:31: AM
Expert Answer
(3-2-3-3) x (30+3-1)
 
= 3-2 3 + 3-2 3-1  - 3-3 3 -  3-3 3-1
= 3-2 + 0 + 3-2+(-1) - 3-2+0 - 3-3+(-1)        ..... am × an = am+n
= 3-2  + 3-3 - 3-2- 3-4 
= 3-3 - 3-4
begin mathsize 16px style equals 1 over 3 cubed minus space 1 over 3 to the power of 4 space space space space space space space space space space...... since space straight a to the power of negative straight m end exponent space equals space fraction numerator 1 over denominator straight a to the power of straight m space end fraction
equals 1 over 3 cubed open parentheses 1 minus 1 third close parentheses
equals 1 over 3 cubed cross times 2 over 3
equals 2 over 3 to the power of 4
equals 2 over 81 end style
Answered by Yasmeen Khan | 27 May, 2020, 10:52: AM

Concept Videos

ICSE 8 - Maths
Asked by souravpaul19 | 24 Jun, 2022, 10:17: AM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by mamtadobhal.5 | 13 Apr, 2022, 06:53: PM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by guterimeena1977 | 08 Mar, 2022, 12:51: AM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by ananya93696996 | 23 Aug, 2021, 08:26: PM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by kpsingh.ks467 | 24 May, 2021, 05:33: PM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by ashwellronaldr | 29 Mar, 2021, 08:30: PM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by nihalcrj2006 | 12 Mar, 2021, 11:02: AM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by kinggta29 | 25 Feb, 2021, 07:03: PM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by saroms | 28 Nov, 2020, 08:28: PM
ANSWERED BY EXPERT
ICSE 8 - Maths
Asked by skvikrant888 | 04 Oct, 2020, 10:54: AM
ANSWERED BY EXPERT
×