In Problems 17 – 24 , find the indicated first-order partial derivative for each function z = f ( x, y ). 19 . f y ( x , y ) if f ( x , y ) = x 2 − 3 x y + 2 y 2
In Problems 17 – 24 , find the indicated first-order partial derivative for each function z = f ( x, y ). 19 . f y ( x , y ) if f ( x , y ) = x 2 − 3 x y + 2 y 2
Solution Summary: The author explains how to obtain the first order partial derivative of the function with respect to y.
Students were asked to simplify the expression (secØ - cosØ)/secØ Two students' work is given.Student A: step 1 secØ/secØ - cosØ/secØstep 2 cosØ/1 - (1/cosØ)step 3 1 - cos^2Østep 4 sin^2ØStudent B: step 1 (1/cosØ)-cosØ)/secØstep 2 (1 - cos^2Ø/cosØ)/secØstep 3 sin^2Ø/cos^2Østep 4 tan^2ØPart A: Which student simplified the expression incorrectly? Explain the errors that were made or the formulas that were misused.Part B: Complete the student's solution correctly, beginning with the location of the error.
Although 330° is a special angle on the unit circle, Amar wanted to determine its coordinates using the sum and difference formulas.Part A: Determine cos 330° using the cosine sum identity. Be sure to include all necessary work.Part B: Determine sin 330° using the sine difference identity. Be sure to include all necessary work.
A public health researcher is studying the impacts of nudge marketing techniques on shoppers vegetables
Chapter 7 Solutions
MyLab Math with Pearson eText - Stand Alone Access Card - for Calculus for Business, Economics, Life Sciences & Social Sciences, Brief Version (14th Edition)
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