Question

1 divided by 2 Y squared minus 8 Z Square

${a + b} \ {a - b}$
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Answer 1

According to the question;

• 1/ (2Y² - 8Z²)
• 1/ [ (√2Y)² - (2√2Z)² ] (using a² - b² = (a+b)(a-b). )
• 1/ (√2Y - 2√2Z)(√2Y + 2√2Z)
• 1/ √2(Y -2Z) × √2(Y + 2Z)
• 1/ 2(Y-2Z)(Y+2Z)
• [ (Y-2Z)^-1 × (Y+2Z)^-1 ] / 2

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