Question

suitable identities to evaluate the
products.
(i) 201 × 203​

Answer 1

Answer:

this answer is correct

Answer 2

201 × 203 = 40803

Given :

The expression 201 × 203

To find :

The value of the expression

Formula :

a² - b² = ( a + b ) ( a - b )

Solution :

Step 1 of 2 :

Write down the given expression

The given expression is 201 × 203

Step 2 of 2 :

Find the value of the expression

Use the formula a² - b² = ( a + b ) ( a - b )

$\sf 201 \times 203$

$\sf = (202 - 1) \times (202 + 1)$

$\sf = (202 + 1) \times (202 - 1)$

$\sf = {202}^{2} - {1}^{2}$

$\sf = 40804 - 1$

$\sf = 40803$

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