∫1/(x∧2+x)dx
∫1/(x^2+x)dx
=∫1/x(x+1)dx
=∫1/xdx-∫1/x+1dx
=lnx-ln(x+1)+C
RELATED INFORMATIONS
- 1. ∫x/(1+√1+x^2)dx
- 2. ∫ 1/x^2(1-x)dx Seeking indefinite integral
- 3. It is known that a (x1, Y1), B (X2, Y2) and C (X3, Y3) are functions y=
- 4. Why do we take 3A as a whole to calculate the derivative of implicit function x ^ 3 + y ^ 3-3axy = 0? 3x^2+3y^2*y~-3ay-3axy~=0 Divide it all by three x^2+y^2*y~-ay-axy~=0 Move those with y to one side y^2*y~-axy~=ay-x^2 =(ay-x^2)/(y^2-ax)
- 5. Equation E ^ XY + xy-e = 0, find y '. How to derive x from both sides of the equation? Detailed process! Please, please! The more detailed the process, the better! It's not the x power of e multiplied by Y, it's the XY power of E
- 6. The equation x ^ 2 + XY + y ^ 2 = 4, why do both sides get 2x + y + XY '+ 2Y * y' = 0 by deriving x at the same time? How do you get y 'in XY' and 2Y * y '? Why do you do this? Is there any rule
- 7. Known: the absolute value of X + 2 + the absolute value of Y-3 = 0, find the value of - 5 / 2x-5 / 3Y + 4xy
- 8. In the equation 2x-3y = 10, y is expressed by an equation containing X
- 9. X & # 178; - 3ax + (2a + b) (a-b) = 0, how to simplify?
- 10. (x-2a) & #178; - A (2a-x) factorization factor
- 11. Function y = 2 ^ (x + 2) - 3x4 ^ x, if x ^ 2 + X
- 12. Find the minimum value of the function f (x) = 2x3-3x2 (- 1 ≤ x ≤ 2), You'd better be able to draw
- 13. The answer is coming soon, (x-1) 2 + 2x (x-1) = 0 2x2-4x-5 = 0 - 3x2-4x + 4 = 0 2 (y + 4) 2 + y (y + 4) = 0 1:(x-1)2+2x(x-1)=0 2:2x2-4x-5=0 3:-3x2-4x+4=0 4:2(y+4)2+y(y+4)=0
- 14. Given x 2-4x + 1 = 0, find the value of x 2 + X-2 The square of X is the sum of the square of X and the minus second power of X
- 15. Let the quadratic form f (x1, X2, x3) = X1 ^ 2 + 3x2 + 2x3 ^ 2 + 4x1x2 + 2x1x3 + 2x2x3, (1) write the matrix of the quadratic form; (2) transform the quadratic form into the standard form by the formula method, and obtain the corresponding full rank transformation
- 16. Solve the matrix equation x-xa = B, where a = (101; 210; - 32 - 3), B = (1 - 21; - 341)
- 17. Find the matrix X so that XA = B, where a = [1 1; 2 1; - 1 1 2], B = [1 2 1; - 1 0 1]
- 18. X1-3x2 + 2x3 = 0 2x1-5x2 + 3x3 = 0 3x1-8x2 + tx3 = 0 t =? General solution of homogeneous matrix
- 19. When x = 0.1, to find the value of polynomial f (x) = X5 power - 3x4 power + 2x3 power - x2 square + 5x + 1, the sum of the times of addition and X method is equal to?
- 20. If 2 times of x2-x + 1 minus 3x2 + 4x-1 of a polynomial, then the polynomial is