- #1

imana41

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hi please help about this:

Curve C is the Common denominator of two surface s1:z=xy and s2:x^2+y^2-z^2=1 find Tangent vector on curve C in dot p(1,1,1) ?

i think Tangent vector on curve C is External Multiply of gradient s1 and s2 in (1,1,1)

but i get it
=(0,0,0)

[URL]http://latex.codecogs.com/gif.latex?\bigtriangledown%20s1=(2x,2y,-2z)[/URL]

[URL]http://latex.codecogs.com/gif.latex?\bigtriangledown%20s2=(y,x,-1)[/URL]

what is my problem ?? please help

Curve C is the Common denominator of two surface s1:z=xy and s2:x^2+y^2-z^2=1 find Tangent vector on curve C in dot p(1,1,1) ?

i think Tangent vector on curve C is External Multiply of gradient s1 and s2 in (1,1,1)

but i get it

[URL]http://latex.codecogs.com/gif.latex?\bigtriangledown%20s1=(2x,2y,-2z)[/URL]

[URL]http://latex.codecogs.com/gif.latex?\bigtriangledown%20s2=(y,x,-1)[/URL]

what is my problem ?? please help

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