Question

How many 10 digit numbers can be written using digits (9 and 2) ?

Answer 1

2 the power 10 can be written

Answer 2

Answer:

$2^1^0$

Step-by-step explanation:

TOTAL NUMBERS OF NUMBERS= 2 x 2 x 2 x 2 x.............x 10 TIMES = $2^1^0$

[ Because we have 2 choices for each place]