Problems 7 (10-6)

# Problems 7 (10-6) - mao(tm23477 – Homework 7 – gualdani...

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Unformatted text preview: mao (tm23477) – Homework 7 – gualdani – (57180) 1 This print-out should have 18 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points If y = y ( x ) is defined implicitly by 4 y 2- xy- 12 = 0 , find the value of dy/dx at (8 , 3). 1. dy dx vextendsingle vextendsingle vextendsingle (8 , 3) = 1 4 2. dy dx vextendsingle vextendsingle vextendsingle (8 , 3) = 3 16 3. dy dx vextendsingle vextendsingle vextendsingle (8 , 3) = 3 17 4. dy dx vextendsingle vextendsingle vextendsingle (8 , 3) =- 1 4 5. dy dx vextendsingle vextendsingle vextendsingle (8 , 3) =- 3 16 002 10.0 points Find dy dx when tan( x + y ) = 2 x- y . 1. dy dx = 2- sec 2 ( x + y ) sec 2 ( x + y ) + 1 2. dy dx = 2- sec 2 ( x + y ) sec 2 ( x + y )- 1 3. dy dx = 1- sec 2 ( x + y ) sec 2 ( x + y ) + 2 4. dy dx = 1 + sec 2 ( x + y ) sec 2 ( x + y )- 2 5. dy dx = 1- sec 2 ( x + y ) sec 2 ( x + y )- 2 6. dy dx = 2 + sec 2 ( x + y ) sec 2 ( x + y ) + 1 003 10.0 points Determine dy/dx when 5 cos x sin y = 7 . 1. dy dx = tan x 2. dy dx = tan xy 3. dy dx = tan x tan y 4. dy dx = cot x tan y 5. dy dx = cot x cot y 004 10.0 points Find the rate of change of q with respect to p when p = 20 q 2 + 5 . 1. dq dp =- 10 qp 2. None of these 3. dq dp =- 5 q 2 p 4. dq dp =- 5 qp 2 5....
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Problems 7 (10-6) - mao(tm23477 – Homework 7 – gualdani...

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