Αποτελέσματα Αναζήτησης
Integrals of Exponential and Logarithmic Functions. ∫ ln x dx = x ln x − x + C. + 1 x. + 1. x ∫ x ln xdx = ln x − + C. 2 + 1 ( n + 1 ) x dx = e x + C ∫.
Page 2 of 6. INTEGRATION FORMULAE STANDARD INTEGRALS 1. ∫, ( )- ( ) , ( )- [where, n ≠ 1- 2. ∫ ( ) ( ) * ( )+ 3. ∫ ( ) ∫ ( ) [where, v be the function of x]
Integration by parts: u dv = uv. −. v du + C. ax + b. Partial Fractions: to integrate a function like : (x + c)(x + d) ax + b A B A(x + d) + B(x + c) Write = + = , (x + c)(x + d) (x + c) (x + d) (x + c)(x + d) so ax + b = A(x + d) + B(x + c) = (A + B)x + (Ad + Bc), so a = A + B and b = Ad + Bc; solve for A and B .
Differentiation Formulas d dx k = 0 (1) d dx [f(x)±g(x ... xn = nxn−1 (7) d dx sinx = cosx (8) d dx cosx = −sinx (9) d dx tanx = sec2 x (10) d dx cotx = −csc2 x (11) d dx secx = secxtanx (12) d ... (18) d dx tan−1 x = 1 x2 +1 (19) d dx cot−1 x = −1 x2 +1 (20) d dx sec−1 x = 1 |x| √ x2 −1 (21) d dx csc−1 x = −1 |x| √ x2 ...
Sometimes we can rewrite an integral to match it to a standard form. More often however, we will need more advanced techniques for solving integrals. First, let’s look at some examples of our known methods. Basic integration formulas. 1. k dx = kx + C. xn+1. 2. xndx = + C. + 1. 3. dx = ln |x| + C. x. 4. ex dx = ex + C. 5. axdx ax. = + C ln(a)
Basic Integration Formulas. As with differentiation, there are two types of formulas, formulas for the integrals of specific functions and structural type formulas. Each formula for the derivative of a specific function corresponds to a formula for the derivative of an elementary function.
De nite (Riemann) Integral lim jj !0jj Xn i=1 f(c i) x i = Z b a f(x)dx Partitions of equal width: jj jj= x Partitions of unequal width: jj= max( x i) Continuity )Integrability The Converse is NOT True (see example below) Example: 2 0 bxcdx = 1 Area of a Region in a Plane Area of the region bounded by the graph of f, x-axis, and x = a and x = b ...
