125(√5)²x =1 হলে x এর মান কত ?

A 3

B -3

C 9

D কোনটি নয়

Solution

Correct Answer: Option B

125(√5)²x =1
বা, 5³ .{(5)¹/² }²x
বা, 5³ .5¹/².²x =1
বা, 5³ .5x=1
বা,5³+x=5⁰
বা ,3+x=0
অতএব, x =-3

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions