Question

PLEASE ANSWER THIS! What is the domain of f(x) = 1/√(−[]) NOTE: [X] IS USED AS GREATER INTEGER FUNCTION AND NOT A MODULUS

Answer 1

The expression inside the square root must not be negative.

$<marquee>The condition is 10Cx−1>3 10Cx</marquee>$

$<marquee>This is true for x=10 and for x=9 only</marquee>$

$<marquee>It could not have been true till x=5 as the number only increases till it reaches 2n</marquee>$