;
;
(17) int dfrac (2cdot {3)^x-5cdot (2)^x}({3)^x}dx-|||-(18) (int )_(e)^exe(sex-ta
求下列不定积分:-|||-int dfrac (2cdot {3)^x-5cdot (2)^x}({3)^x}dx =
int (3 cdot 2^x - 2 cdot 3^x)/(2^x) dx =A. $3x - 2\ln \frac{3}{2} \cdot \left(\f
int dfrac (2{x)^3+2x+3}({x)^2+1}dx=(x)^a+b(x)+C 则 cdot b(x)=
(4)lim _(xarrow infty )dfrac ({3)^x+4cdot (2)^x}({2)^x-3cdot (5)^x}(4)
计算(int )_(-2)^1dfrac (1)({(7+3x))^3}dx-|||-__时,令(int )_(-2)^1dfrac (1)({(7+3x))^
int dfrac ({x)^5+(x)^4-8}({x)^3-x}dx-|||-__-|||-__..
int dfrac ({x)^3}({(1+{x)^2)}^2}dx=A.int dfrac ({x)^3}({(1+{x)^2)}^2}dx=B.int df
int ((2)^xsin (x)^2)dx= ()-|||-(4) ^xsin (x)^2-|||-circled (8) ln 2cdot (2)^xcdo
5.设由方程 ^3+3y-(x)^2+2x=0 确定y是x的函数,求 dfrac (dy)(dx),dfrac (dy)(dx)(|)_(x=0cdot ).