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Speed Math Squaring and Square Roots Squaring using Duplex Method

[Speed Math] DUPLEX CONCEPT

The concept of DUPLEX has to be learned before you learn SQUARING ANY NUMBER USING DUPLEX METHOD.

Squaring using Duplex Method

When can I use this method?

For squaring any number.

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Notes –

  1. Notice the patterns in which the digits are selected.
  2. Notice the way the individual values are added.
  3. This method uses the concept of (a + b +c +…)2 =  a2 +  b2 + c2 + … 2ab + 2bc + 2ac + … (It is a simplified version of the Multinomial Theorem)

Related Shortcuts –

Squaring Any Number using Duplex Method


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