F is a differentiable function for all x. Which of the following statements must be true? a. d/dx ∫ f(x)dx=f(x)
b. d/dx ∫ f(t)dt= - f(x)
c. ∫ f′(x)dx=−f(x)

The limits in the integral of the options are missing. They are :

a).

b).

c).

Solution:

We known that

a).  

     = 0 - 0

     = 0

Hence it is true.

b).  

      = f(x)

Hence it is true.

c).

Hence it is false.

Therefore option a) and b). are true.

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation:

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )