Question

2 to the power -10   -  92 to the power -1

Answer 1

2 to the power -10-92 to the power -1. a power m whole power n = a to the power of m×n i.e.,mn.so 2 to the power 102.

Answer 2

1/1024  -   1/92
=92-1024/90248
=-0.010327