Let ( = ((x, y, ((x, y)) be the acute angle between the z-axis and a normal

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Let ( = ((x, y, ((x, y)) be the acute angle between the z-axis and a normal vector to the surface z = ((x, y) at the point (x, y, ((x, y)) on the surface. Show that sec ( = ((x2 + (y2 + 1. (This gives another formula for surface area: A(G) =

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Calculus

ISBN: 978-0131429246

9th edition

Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon

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Question Posted: Jun 21, 2016 11:16 AM

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Let ( = ((x, y, ((x, y)) be the acute angle between the z-axis and a normal

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seey dr.)

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Let x y fx y be the acute angle between a unit vector n that is norma...View the full answer

Calculus

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