Question

$4^ {x}= \frac4{2^ {x}}$ ആയാൽ x ന്റെ വിലയെന്ത്?

• A. 3/4
• B. 2/3
• C. 1/4
• D. 4/3

Answer 1

Answer:

B. 2/3

$4^ {x}= \frac4{2^ {x}}$
$2^ {2x}= \frac{2^{2}}{2^ {x}}$
$2^ {2x}= {2^ {2-x}}$
$2x = 2 - x$
$3x = 2$
$x = 2/3$