mọi người tính giúp em mấy cái nguyên hàm với :
1, \(\int\dfrac{x^2-1}{x^4+1}dx\)
2, \(\int\dfrac{dx}{3x^2-3}\)
3, \(\int\dfrac{dx}{1+sinx}\)
4, \(\int\dfrac{sinxdx}{\sqrt{cos2x}}\)
5, \(\int\dfrac{xdx}{\sqrt[3]{1-3x}}\)
6, \(\int2^{2x}.3^{3x}.4^xdx\)
7,\(\int\dfrac{dx}{xlnx.ln\left(lnx\right)}\)
8, \(\int\dfrac{dx}{sinx.cos^3x}\)
9, \(\int\dfrac{cos2xdx}{sin^2x.cos^2x}\)
10, \(\int\dfrac{dx}{\sqrt{2x}-\sqrt{2x+1}}\)
1, \(\int\dfrac{x^3dx}{\left(x^8-4\right)^2}\)
2, \(\int\dfrac{2x+1}{x^4+2x^2+3x^2+2x-3}dx\)
3, \(\int\dfrac{sin\sqrt[3]{x}}{\sqrt[3]{x^2}}dx\)
4, \(\int\dfrac{dx}{sin^2x+2cos^2x}\)
5, \(\int\dfrac{sinx+cosx}{3+sin2x}dx\)
tính nguyên hàm bằng pp hệ số bất định
1.\(\int\dfrac{2x+1}{3x^2-x-4}dx\)
2.\(\int\dfrac{-5}{x^2+x+2}dx\)
3.\(\int\dfrac{3x}{x^2+2x+1}dx\)
(trình bày pp luôn dùm nhé)
1, \(\int\dfrac{dx}{1+\sqrt{x}}\)
2, \(\int\dfrac{sinx.cos^3x}{1+sin^2x}dx\)
Tìm các nguyên hàm sau:
a) \(\int (3x^2-2x-4)dx \)
b) \(\int(\sin3x-\cos4x)dx \)
c) \(\int(e^{-3x}-4^x)dx \)
d) \(\int\ln(x)dx \)
e) \(\int(x.e^x)dx \)
f) \(\int(x+1).\sin(x)dx \)
g) \(\int x.\ln(x)dx \)
Tính các nguyên hàm sau :
a) \(\int x\left(3-x\right)^5dx\)
b) \(\int\left(2^x-3^x\right)^2dx\)
c) \(\int x\sqrt{2-5x}dx\)
d) \(\int\dfrac{\ln\left(\cos x\right)}{\cos^2x}dx\)
e) \(\int\dfrac{x}{\sin^2x}dx\)
\(\int\dfrac{x+1}{\left(x-2\right)\left(x+3\right)}dx\)
h) \(\int\dfrac{1}{1-\sqrt{x}}dx\)
i) \(\int\sin3x\cos2xdx\)
k) \(\int\dfrac{\sin^3x}{\cos^2x}dx\)
l) \(\int\dfrac{\sin x\cos x}{\sqrt{a^2\sin^2x+b^2\cos^2x}}dx\) (\(a^2\ne b^2\))
Tính : \(\int\dfrac{sin^2x}{sin^3x+cos^3x}dx\)
\(\int\dfrac{1}{cosx.cos\left(x+\dfrac{\pi}{4}\right)}dx\)
\(\int\dfrac{1}{x^3\left(1+x^2\right)}dx=\dfrac{a}{x^2}+blnx+cln\left(1+x^2\right).S=a+b+c=?\)
\(\int\dfrac{5-3x}{\left(x^2-5x+6\right)\left(x^2-2x+1\right)}dx=\dfrac{a}{x-1}-ln\left(\dfrac{x-b}{x-c}\right)+C.P=2a+b\)
1, \(\int\dfrac{x}{1-cos2x}dx\)
2, \(\int cos2x.e^{3x}dx\)
3, \(\int\left(2x+1\right)ln^2dx\)
4, \(\int\left(2x-1\right)cosxdx\)
5, \(\int\left(x^2+x+1\right)e^xdx\)
6, \(\int\left(2x+1\right)ln\left(x+2\right)dx\)