Question

answer the question fast​

Answer 1

Answer:

answer should be -3/4

Step-by-step explanation:

as a = 2 , b = 1

=1/2²-1/1¹

= 1/4 - 1/1

= 1/4-1

= -3/4

Answer 2

Answer:

$1/4 -1/1$

$=1-4/4$

$=-3/4$