Answer:
AB4F=1010101101001111.
Explanation:
Every bit of hexadecimal number is a 4 bit binary number.So to convert a number from hexadecimal to binary number by finding the corresponding binary number for each bit of hexadecimal number and then write it in the same sequence.
A=1010
B=1011
4=0100
F=1111
Writing in the same sequence of the hexadecimal number.
AB4F = 1010101101001111.
