x⁻⁵ - 0.00001 হলে x³ এর মান কত? 

A 10 

B 100 

C 1000 

D 10000

Solution

Correct Answer: Option C

x⁻⁵ - 0.00001
⇒ x⁻⁵ = 0.00001
⇒ x⁻⁵ = (10)⁻⁵
⇒ x = 10
⇒ x³ = 10³
∴ x³ = 1000 

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