高等数学_例题解-12

例12y=-2x2,求 解2=[(1-2x2)了=(1-2x2)3(1-2x2) -4x 3(0-2x2)2

结束 解 例 12 3 2 y= 1−2x  求dx dy  解 ( 1 2 ) ( 1 2 ) 31 [( 1 2 ) ] 3 2 2 3 2 1 2 = −  = −  −  − x x x dx dy 3 2 2 3 ( 1 2 ) 4 xx −− 解 =  (1 2 ) (1 2 ) 31 [( 1 2 ) ] 3 2 2 3 2 1 2 = − = −  −  − x x x dx dy 3 2 2 3 ( 1 2 ) 4 xx −− 解 =  (1 2 ) (1 2 ) 31 [( 1 2 ) ] 3 2 2 3 2 1 2 = −  = −  −  − x x x dx dy 3 2 2 3 ( 1 2 ) 4 xx −− = 