Question

please help please please​

Answer 1

Answer:

7 / -6 is not equal to 294 / - 56 ........... Hence shown

Step-by-step explanation:

(x-y)^-1 is not equal to (x ^ -1) - (y ^ -1)

=> 1/ (x - y )  is not equal to 1/x - 1/y

=> 1/ x - y is not equal to (1/x).y - (1/y).x

=> 1 / x - y is not equal to y - x / xy

=> 1/ (-2/7) - 4/7  is not equal to (4/7 - -2/7) / (-2/7 X 4/7)

=> 7/-6 is not equal to (6/7) / (-8/49)

=> 7/ -6 is not equal to 6X49/ -8X7

=> 7 / -6 is not equal to 294 / - 56 ........... Hence shown

Answer 2

Answer:

Just substitute the values individually.