Find the derivative with respect to x of the following​​

1- 1+1/x^2

2- x-1/2x^(3/2)

3- 6x-6/x^3

4-2- x^2+1/x^2 if you simplify it you will get x^2-1/x^2

5- 4x^3+2/x^2 - 2(x^4+2x)/x^3 if you simplify it you will get 2x^3 -2 /x^2

6- 2/x^2 - 3-(x^2+1) /x^4 if you simplify it you will get -x^2+3/x^4

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: