can anyone please explain me about the additional method of perfect squares to be added I have my exam tomorrow class 8th2
Answers
Answer:
let see for example how to find whether 525 is a perfect square by additional method of perfect square ,
A perfect square is a number that can be expressed as the product of two equal integers.
The only way to accurately calculate if a number is a perfect square is to find the factors. Before we go through the trouble of finding the factors, there is a quick trick you can use to help determine if you need even need to do the extra work.
Try these steps first:
A number that is a perfect square never ends in 2, 3, 7 or 8. If your number ends in any of those numbers, you can stop here because your number is not a perfect square.
Obtain the digital root of the number. The digital root essentially is the sum of all of the digits. If you're lost, don't worry, we'll go over each step in more detail below.
All possible numbers that are a perfect square have a digital root of 1, 4, 7, 9.
Step 1:
What is the last number of 525? It is this number: 525. The answer is 5. Is 5 in the list of numbers that are never perfect squares (2, 3, 7 or 8)?
Answer: NO, 5 is not in the list of numbers that are never perfect squares. Let's continue to the next step.
Step 2:
We now need to obtain the digital root of the number. Here's how you do it:
Split the number up and add each digit together:
5 + 2 + 5 = 12
If the answer is more than one digit, you would add each digit of the answer together again:
1 + 2 = 3
What is the digital root of number 525?
Answer: 3
Step 3:
So now we know the digital root of 525 is 3. Is 3 in the list of digital roots that are always a square root (1, 4, 7 or 9)?
Answer: NO, 3 is not in the list of digital roots that are always perfect squares. We can conclude that 525 IS NOT a perfect square.
Step-by-step explanation:
that's all , if u feel this really helpful then , mark as brainliest , if it's not clear or relevent then u can comment on my mistakes
Thank you friends