HAPPY READING
HI FRIENDS MANY OF US KNOW DIFFERENT METHODS AND PROCEDURES FOR FINDING SQUARE ROOT AND CUBE ROOT OF A NUMBER. I KNOW YOU ALL ARE GENIUS IN DOING SO , HERE I TO AM GOING TO SHOW YOU VERY SIMPLE WAY OF CALCULATING SQUARE ROOT AND CUBE ROOT OF A NUMBER.''
HMM. YES I THINK ITS REALLY INTERESTING RIGHT TO KNOW SHORTCUTS.
IN BANKING EXAMS "TIME MANAGEMENT" IS AN IMPORTANT FACTOR WHICH DETERMINES YOUR SUCCESS SO IN THIS REGARD PEOPLE WHO WANNA BE FIRST ALWAYS IN THEIR MIND CAN EASILY ACHIEVE IT.
THE ABOVE THINGS CAN HAPPEN IF YOU KNOW SHORT-CUTS.
MORE THE PRACTICE YOU YOURSELF WILL FIND MORE NO OF SHORT-CUTS
OK NOW LETS SEE HOW TO FIND SHORTCUTS FOR FINDING SQUARE ROOT AND CUBE
ROOT OF ANY NUMBER
SQUARE ROOT:
QUESTION : EXAMPLE FIND THE SQUARE ROOT OF 2116
STEP1: SEE REMEMBER SQUARE MEANS VALUE 2 AND CUBE MEANS VALUE 3 ..SO TO
CALCULATE SQUARE ROOT OF 2116 ....TAKE LAST TWO DIGITS (REMEMBER IN SQUARE
ROOT WE HAVE TO TAKE LAST TWO DIGITS AND CUBE ROOT LAST THREE DIGITS TO
CONSIDER) SO HERE WE TAKE 16 ...IN 2116
STEP 2: 16 MEANS SEE LAST DIGIT 6 SO ...6 COMES IN EITHER 4 SQUARE OR 6 SQUARE..SO
LAST NUMBER IS EITHER 4 OR 6.. KEEP IT IN MIND
STEP 3: NOW TAKE ANOTHER TWO DIGITS FROM 2116 ,,,IE; 21 .SUPPOSE IF WE TAKE
2SQUARE=4, 3 SQUARE=9, 4 SQUARE=16, AND SEE CAREFULLY 5SQUARE=25 I EXCEEDS
21..SO TAKE 4 SQUARE ...ONLY
STEP5:SO ANSWER IS EITHER 46 OR 44
ANY CONFUSION: SEE ABOVE STEPS CAREFULLY AND EASILY YOU CAN DO NEXT TIME
WHEN U PRACTICE MORE YOU WILL SEE AND SAY THE ANSWER.
STEP6: OUT OF 44 AND 46 WHICH IS THE RIGHT ANSWER.
STEP 7: ALWAYS TAKE MIDDLE NUMBER IN SERIES 40 TO 49..IE; 45 OR ALWAYS TAKE
NUMBER IN SERIES OF OUR ANSWER IE; 40 TO 49 ENDING WITH 5.
WHY WE CONSIDER ONLY ENDING WITH 5 BECAUSE ITS VERY EASY TO FIND OUT ANSWER
USING THIS
SO ANY NUMBER ENDING WITH 5
SHOERTCHUT IS
45 SQUARE = 4 MULTIPLIED BY ITS NEXT NUMBER AND 5 SQAURE IN UNIT DIGIT PLACE
TENS DIGIT PLACE UNIT DIGIT PLACE
4 X 5=20 5X5=25
SO 45 SQUARE =2025
LAST STEP:
DECIDING ANSWER BY SEEING 45 SQUARE
WE NEED TO FIND SQUARE OF 2116 .. SO 45 SQAURE =2025 SO 2116 IS GREATER THAN 2116
HENCE OUR ANSWER-46
I AM GOING TO POST CUBE ROOT SEPARATELY IN DIFFERENT POST...HAPPY READING
HI FRIENDS MANY OF US KNOW DIFFERENT METHODS AND PROCEDURES FOR FINDING SQUARE ROOT AND CUBE ROOT OF A NUMBER. I KNOW YOU ALL ARE GENIUS IN DOING SO , HERE I TO AM GOING TO SHOW YOU VERY SIMPLE WAY OF CALCULATING SQUARE ROOT AND CUBE ROOT OF A NUMBER.''
HMM. YES I THINK ITS REALLY INTERESTING RIGHT TO KNOW SHORTCUTS.
IN BANKING EXAMS "TIME MANAGEMENT" IS AN IMPORTANT FACTOR WHICH DETERMINES YOUR SUCCESS SO IN THIS REGARD PEOPLE WHO WANNA BE FIRST ALWAYS IN THEIR MIND CAN EASILY ACHIEVE IT.
THE ABOVE THINGS CAN HAPPEN IF YOU KNOW SHORT-CUTS.
MORE THE PRACTICE YOU YOURSELF WILL FIND MORE NO OF SHORT-CUTS
OK NOW LETS SEE HOW TO FIND SHORTCUTS FOR FINDING SQUARE ROOT AND CUBE
ROOT OF ANY NUMBER
SQUARE ROOT:
QUESTION : EXAMPLE FIND THE SQUARE ROOT OF 2116
STEP1: SEE REMEMBER SQUARE MEANS VALUE 2 AND CUBE MEANS VALUE 3 ..SO TO
CALCULATE SQUARE ROOT OF 2116 ....TAKE LAST TWO DIGITS (REMEMBER IN SQUARE
ROOT WE HAVE TO TAKE LAST TWO DIGITS AND CUBE ROOT LAST THREE DIGITS TO
CONSIDER) SO HERE WE TAKE 16 ...IN 2116
STEP 2: 16 MEANS SEE LAST DIGIT 6 SO ...6 COMES IN EITHER 4 SQUARE OR 6 SQUARE..SO
LAST NUMBER IS EITHER 4 OR 6.. KEEP IT IN MIND
STEP 3: NOW TAKE ANOTHER TWO DIGITS FROM 2116 ,,,IE; 21 .SUPPOSE IF WE TAKE
2SQUARE=4, 3 SQUARE=9, 4 SQUARE=16, AND SEE CAREFULLY 5SQUARE=25 I EXCEEDS
21..SO TAKE 4 SQUARE ...ONLY
STEP5:SO ANSWER IS EITHER 46 OR 44
ANY CONFUSION: SEE ABOVE STEPS CAREFULLY AND EASILY YOU CAN DO NEXT TIME
WHEN U PRACTICE MORE YOU WILL SEE AND SAY THE ANSWER.
STEP6: OUT OF 44 AND 46 WHICH IS THE RIGHT ANSWER.
STEP 7: ALWAYS TAKE MIDDLE NUMBER IN SERIES 40 TO 49..IE; 45 OR ALWAYS TAKE
NUMBER IN SERIES OF OUR ANSWER IE; 40 TO 49 ENDING WITH 5.
WHY WE CONSIDER ONLY ENDING WITH 5 BECAUSE ITS VERY EASY TO FIND OUT ANSWER
USING THIS
SO ANY NUMBER ENDING WITH 5
SHOERTCHUT IS
45 SQUARE = 4 MULTIPLIED BY ITS NEXT NUMBER AND 5 SQAURE IN UNIT DIGIT PLACE
TENS DIGIT PLACE UNIT DIGIT PLACE
4 X 5=20 5X5=25
SO 45 SQUARE =2025
LAST STEP:
DECIDING ANSWER BY SEEING 45 SQUARE
WE NEED TO FIND SQUARE OF 2116 .. SO 45 SQAURE =2025 SO 2116 IS GREATER THAN 2116
HENCE OUR ANSWER-46
I AM GOING TO POST CUBE ROOT SEPARATELY IN DIFFERENT POST...HAPPY READING
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