Easy
1 point
ID: #24237
Question
4^x + 4^(1-x) = 4 হলে, x = কত?
Options
1
1/4
Correct Answer
2
1/3
Correct Answer
3
1/2
Correct Answer
4
1
Correct Answer
Explanation
ধরি 4^x = a। তাহলে, a + 4/a = 4 => a^2 - 4a + 4 = 0 => (a-2)^2 = 0 => a = 2। এখন, 4^x = 2 => (2^2)^x = 2^1 => 2x = 1 => x = 1/2।