Integral is the core concept in calculus and mathematical analysis. Usually divided into definite integral and indefinite integral.

Indefinite integral is a simple integral, that is, the derivative is known to find the original function. If the derivative of f(x) is f(x), then the derivative of f(x)+C(C is a constant) is also F(x), that is to say, if you integrate F(x), you may not get F(x) because F(x)+C.

The formula is:

Relative to indefinite integral, there is definite integral. The so-called definite integral has a form. It is called definite integral because the value obtained after its integration is definite, a number, not a function.

Commonly used integral formulas are

f(x)-& gt； ∫f(x)dx

k-& gt； kxx^n->； [ 1/(n+ 1)]x^(n+ 1]

a^x->； a^x/lnasinx->； -cosx

cosx-& gt； Sinks

tanx->； -lncosx

cotx-& gt； lnsinx

secx->； ln(secx+tanx)

cscx->； ln(cscx-cotx)(ax+b)^n->； [(ax+b)^(n+ 1)]/[a(n+ 1)]

1/(ax+b)-& gt； 1/a*ln(ax+b)