Mathcad .
. -, Convert to Partial Fraction Variable Symbolics.
V.
f(x) = xsin [0, 4p2].
Mathcad .
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. f(x) = xsin . , , ( <Shift>+<:> . , . , . , . i i . : i == 0; 20*. i = , : [ i <Space> == i * 4 * (<Ctrl>+<p>)^2 <Space...Space> /20. - F : Fi = f(xi). : F [ i Space: f ( [ i <Space>). , : F =. . .
VI. f(x) =xsin .
Mathcad .
. f(x), , f(x), , , , f(x). . , ( , , ).
VII. f(x) = 0, f(x) = x3+3x2-2.
33 34 Mathcad , .
. f(x) , , . = 0, Trace Graph Format. ( ) ( ) . : .
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VIII. =0.
Mathcad .
. . solve () , solve , , . .