# True or False. If F(x) = \int_{-2}^{3x} \sin(t)\ dt, then the second fundamental theorem of...

## Question:

True or False.

If {eq}F(x) = \int_{-2}^{3x} \sin(t)\ dt {/eq}, then the second fundamental theorem of calculus can be used to evaluate F '(x) as follows {eq}F '(x) = \sin (3x). {/eq}

## Second Fundamental Theorem of Calculus:

The second fundamental theorem of calculus states that the differential of {eq}F(x) = \displaystyle \int_{a}^{x} f(t) \, \mathrm{d}t {/eq} is {eq}F'(x) = f(x) {/eq}.

Suppose the upper limit of integration is a general function of {eq}x {/eq} denoted by {eq}u(x) {/eq}.

Then, the derivative uses the chain rule and is given by

{eq}\displaystyle F'(x) = f(x) \frac{\mathrm{d}u}{\mathrm{d}x} {/eq}

Become a Study.com member to unlock this answer! Create your account

Note that the derivative of {eq}\displaystyle F(x) = \int_{-2}^{3x} \sin(t)\ \mathrm{d}t {/eq} is simply {eq}F'(x) = \sin(x) {/eq} if the upper...