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Hello, I had a doubt regarding one of the questions in the chapter test of the chapter square and square roots.the question said that ,the value of the expression square root of 1+23 square root of 1+24 square root of 1+25 square root of 26x28+1 is equal to”I did not know how to do this so I unfortunately had to guess it.but the ans was wrong so when I checked in the solution button it only said the ans and not the formula or solution.so I would be very happy if u would explain this problem to me...

RIZWAN IQBAL , 4 Years ago
Grade 8
anser 1 Answers
Askiitians Tutor Team

Let's break down the expression you've encountered step by step. The expression is the square root of a series of terms, and it can seem a bit daunting at first glance. However, with a systematic approach, we can simplify it and find the answer together.

Understanding the Expression

The expression you provided is:

√(1 + 23√(1 + 24√(1 + 25√(26 × 28 + 1))))

To solve this, we need to simplify it from the innermost part outward. Let's start with the innermost expression, which is 26 × 28 + 1.

Calculating the Innermost Expression

First, we calculate:

  • 26 × 28 = 728
  • Adding 1 gives us: 728 + 1 = 729

Now we have:

√(1 + 23√(1 + 24√(1 + 25√(729))))

Working Outwards

Next, we need to find the square root of 729:

  • √729 = 27

Now, substitute this back into the expression:

√(1 + 23√(1 + 24√(1 + 25 × 27)))

Continuing the Simplification

Now, we calculate 25 × 27:

  • 25 × 27 = 675

Substituting this back gives us:

√(1 + 23√(1 + 24√(1 + 675)))

Next Step

Now, we simplify 1 + 675:

  • 1 + 675 = 676

So we have:

√(1 + 23√(1 + 24√(676)))

Finding the Square Root of 676

Next, we find the square root of 676:

  • √676 = 26

Now, substitute this back into the expression:

√(1 + 23√(1 + 24 × 26))

Calculating 24 × 26

Now we calculate 24 × 26:

  • 24 × 26 = 624

Substituting this gives us:

√(1 + 23√(1 + 624))

Final Steps

Now, simplify 1 + 624:

  • 1 + 624 = 625

So we have:

√(1 + 23√(625))

Next, we find the square root of 625:

  • √625 = 25

Now substitute this back into the expression:

√(1 + 23 × 25)

Calculating 23 × 25

Now we calculate 23 × 25:

  • 23 × 25 = 575

So we have:

√(1 + 575) = √576

Final Calculation

Finally, we find the square root of 576:

  • √576 = 24

Final Answer

Thus, the value of the entire expression is:

24

This step-by-step breakdown shows how we can simplify complex nested square roots by working from the innermost expression outward. If you have any further questions or need clarification on any part of this process, feel free to ask!

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