The value of \((.98)^3 + (.02)^3 + 3 \times .98 \times .02 - 1\) is

1.	The value of \((.98)^3 + (.02)^3 + 3 \times .98 \times .02 - 1\) is
Answer» Correct Answer - Option 1 : 0 Identity used: (a + b)³ = a³ + b³ + 3ab(a + b) Calculation: ⇒ (.98 + .02)³ = (.98)³ + (.02)³ + 3 × .98 × .02(.98 + .02) ⇒ 1 = (.98)3 + (.02)3 + 3 × .98 × .02 ⇒ (.98)3 + (.02)3 + 3 × .98 × .02 - 1 = 0 ∴ Solution is 0.

Answer» Correct Answer - Option 1 : 0

Identity used:

(a + b)³ = a³ + b³ + 3ab(a + b)

Calculation:

⇒ (.98 + .02)³ = (.98)³ + (.02)³ + 3 × .98 × .02(.98 + .02)

⇒ 1 = (.98)3 + (.02)3 + 3 × .98 × .02

⇒ (.98)3 + (.02)3 + 3 × .98 × .02 - 1 = 0

∴ Solution is 0.

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The value of \((.98)^3 + (.02)^3 + 3 \times .98 \times .02 - 1\) is

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