sifatida а в = л t e n g l a m a n i qoMlash kerak.
M a s a l a n i b i r i n c h i m c t o d b il a n y c c h i l g a n d a а в = x m u n o s a b a t n i n g
o ;z i d a n g i n a f o y d a l a n i l g a n e d i , s h u s a b a b d a n ik k i n c h i m e t o d h a m h u d d i
o ‘sh a y e c h i m n i beradi.
1-bobga mashq va savollar
1. E rk in lik d a r a j a l a s i n i m a ?
2. Q a n d a y s i s te m a in e r s ia l s istem a d e y i l a d i ?
3. B e r il g a n L a g r a n j f u n k s i y a l a r i u ch u n h a r a k a t t e n g l a m a l a r i n i to p in g :
a) L = - i f - — c f \
b) L ~ - t i f \
c) L - - в " + - s i n 26 0 2 - c o s 0 .
2
2
2
2
2
4.
Q u y id a g i L a g r a n j f u n k s i y a l a r i g a m o s k e lu v c h i h a r a k a t te n g l a m a l a r i n i
toping:
a) L = ^ - ( ф 2 + ^ в 2 + ф в ) + 31 cos(p\
b) L - tX'X
^
;
c ) L = - s ! \ - x 2 + A ( x ) k - ( p ( x ) ;
d) L = x 1 -(
5.
Q u y i d a g i L a g r a n j f u n k s i y a s i b il a n x a r a k t e r l a n u v c h i s i s t e m a l a r n i n g
t e z l a n i s h l a r i n i toping:
34
a )
L = - \ j \ ~ ~ q 2 + q\
Ь)
L - ^ i■' +
2
r 6 + ^ ;
1
^
c) L = - ( x ' + \ ‘-) + ( x y - y x ) .
2
6. To 'liq h o si/a n i ta s h la b y u b o r i s h y o 'li b ila n e k v i v a l e n t L a g r a n j f u n k
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