高等数学 不定积分?
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(1)
∫3√x/x^2 dx
=∫3x^(-3/2) dx
=-6x^(-1/2) + C
(2)
∫[ (2/5)x.√x -3e^x] dx
=∫[ (2/5)x^(3/2) -3e^x] dx
=(4/25)x^(5/2) -3e^x +C
(3)
∫[ x^2.√x -5√x] dx
=∫[ x^(5/2) -5√x] dx
=(2/7)x^(7/2) - (10/3)x^(3/2) +C
(4)
∫ (x+1)^2/x dx
=∫ ( x + 2 + 1/x) dx
=(1/2)x^2 +2x +ln|x| + C
∫3√x/x^2 dx
=∫3x^(-3/2) dx
=-6x^(-1/2) + C
(2)
∫[ (2/5)x.√x -3e^x] dx
=∫[ (2/5)x^(3/2) -3e^x] dx
=(4/25)x^(5/2) -3e^x +C
(3)
∫[ x^2.√x -5√x] dx
=∫[ x^(5/2) -5√x] dx
=(2/7)x^(7/2) - (10/3)x^(3/2) +C
(4)
∫ (x+1)^2/x dx
=∫ ( x + 2 + 1/x) dx
=(1/2)x^2 +2x +ln|x| + C
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