In: Math
part 1)
Find dy/dx by implicit differentiation.
3x^6+x^5y−2xy^6=8
dy/dx=
part 4)
A campground owner has 2000 meters of fencing. She wants to enclose a rectangular field bordering a lake, with no fencing needed along the lake: see the sketch.
a) Write an expression for the length of the field: 2000-x (this is correct)
b) Find the area of the field (length times width): -x^2+2000x (this is correct)
c) Find the value of x leading to the maximum area:
d) Find the maximum area:
I got (2y^6-5yx^4-30x^5)/(x^5-12xy^5)
part 2)
sqrt (x+y)=9+x^2y^2
dy/dx= (80+4x^3y^4+36xy^2)/(1-4x^4y^3-36x^2y)
part 3)
Use implicit differentiation to find an equation of the tangent line to the curve
sin(x+y)=6x−6y at the point (π,π).
Tangent Line Equation: y= (5x/7)-(2pi/7)