arctg(lnx) | ||
∫ | dx | |
x |
1 | ||
1) podstaw: lnx = t i | dx = dt | |
x |
arctg(lnx) | 1 | |||
∫ | dx = [t=lnx][dt= | dx] = ∫arctgtdt = [f(t) = arctgt −−> | ||
x | x |
1 | ||
f'(t)= | ][g'(t)=1−−> | |
t2+1 |
t | ||
g(t)=t] = tarctgt − ∫ | dt | |
t2+1 |
t | 1 | 2t | 1 | |||||
∫ | dt = | ∫ | dt = | ln(t2+1) | ||||
t2+1 | 2 | t2+1 | 2 |
5^2 | 52 |
2^{10} | 210 |
a_2 | a2 |
a_{25} | a25 |
p{2} | √2 |
p{81} | √81 |
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