(√3.√5)4 এর মান কত?

A 30

B 60

C 225

D 15

Solution

Correct Answer: Option C

(√3.√5)4
= (√3)4 × (√5)4
= {(√3)2}2 × {(√5)2}2
= 32 × 52
= 9 × 25
= 225

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