Question

45 to the power -1 subtracted to 90 to the power -1 is

Solve:-

Answer 1

Step-by-step explanation:

1/45-1/90=2-1 / 90=1/90=90'-1

Answer 2

Answer:

(45)^-1 - (90)^-1

= 45

Step-by-step explanation:

please get sure