All flashcards
Flashcard 1: Differentiate cos(x+y)=x implicitly.
Answer: −sin(x+y)(1+dxdy)=1. Chain rule: dxd[cos(u)]=−sin(u)dxdu.
Flashcard 2: Differentiate y3+3xy=6 implicitly.
Answer: 3y2dxdy+3y+3xdxdy=0. Power rule on y3, product rule on 3xy term.
Flashcard 3: Differentiate y2+yx=1 implicitly.
Answer: 2ydxdy+y+xdxdy=0. Product rule on yx term, power rule on y2 term.
Flashcard 4: Differentiate x2y+y2x=1 implicitly.
Answer: 2xy+x2dxdy+2yxdxdy+y2=0. Use product rule on both terms: x2y and y2x.
Flashcard 5: Find dxdy for x2+y2=1.
Answer: dxdy=−yx. Solve for dxdy by isolating it algebraically.
Flashcard 6: Differentiate yx=1 implicitly.
Answer: y2y−xdxdy=0. Use quotient rule: dxd[vu]=v2vdxdu−udxdv.
Flashcard 7: Find dxdy for xy=1.
Answer: dxdy=−xy. Solve for dxdy from the differentiated equation.
Flashcard 8: Differentiate xy=1 implicitly.
Answer: y+xdxdy=0. Use product rule: dxd(xy)=y+xdxdy.
Flashcard 9: Find dxdy for x2−xy+y2=7.
Answer: dxdy=x−2y2x−y. Collect dxdy terms and solve for the derivative.
Flashcard 10: Differentiate ln(x+y)=x−y implicitly.
Answer: x+y1(1+dxdy)=1−dxdy. Chain rule for ln(x+y) gives x+y1(1+dxdy).
Flashcard 11: Differentiate ex+y=xy implicitly.
Answer: ex+y(1+dxdy)=y+xdxdy. Chain rule on left, product rule on right side.
Flashcard 12: Differentiate x2+y2=4xy implicitly.
Answer: 2x+2ydxdy=4y+4xdxdy. Standard implicit differentiation with product rule on right.
Flashcard 13: State the chain rule for differentiation.
Answer: If y=f(u) and u=g(x), then dxdy=dudy×dxdu. Essential for differentiating composite functions.
Flashcard 14: Differentiate exy=y implicitly.
Answer: exy(y+xdxdy)=dxdy. Chain rule on left, product rule within exponent.
Flashcard 15: Differentiate x2+y2=1 implicitly.
Answer: 2x+2ydxdy=0. Apply dxd to both sides, using chain rule for y2 term.
Flashcard 16: Find dxdy for x+y1=x−y.
Answer: dxdy=1+(x+y)2(x+y)2−1. Solve by collecting dxdy terms on one side.
Flashcard 17: Find dxdy for x2y+y2x=1.
Answer: dxdy=x2+2yx−2xy−y2. Factor out dxdy from numerator and solve.
Flashcard 18: Differentiate sin(xy)=y implicitly.
Answer: cos(xy)(y+xdxdy)=dxdy. Chain rule on sin(xy) with product rule inside.
Flashcard 19: Find dxdy for y2+yx=1.
Answer: dxdy=x+2y−y. Factor dxdy and solve for it algebraically.
Flashcard 20: Find dxdy for x2+2y2=3xy.
Answer: dxdy=4y−3x3y−2x. Collect dxdy terms and solve for the derivative.
Flashcard 21: Differentiate x3+y3=6xy implicitly.
Answer: 3x2+3y2dxdy=6y+6xdxdy. Apply power rule to each cubic term, product rule to 6xy.
Flashcard 22: Find dxdy for yx=1.
Answer: dxdy=xy. From yx=1, we get x=y, so slopes are equal.
Flashcard 23: Find dxdy for ln(x+y)=x−y.
Answer: dxdy=x+y+1x+y−1. Collect dxdy terms and solve algebraically.
Flashcard 24: Differentiate x+y1=x−y implicitly.
Answer: −(x+y)21(1+dxdy)=1−dxdy. Use chain rule on x+y1=(x+y)−1.
Flashcard 25: Differentiate x2+2y2=3xy implicitly.
Answer: 2x+4ydxdy=3y+3xdxdy. Apply power rule to each term, product rule to 3xy.
Flashcard 26: Differentiate ln(xy)=y2 implicitly.
Answer: xy1(y+xdxdy)=2ydxdy. Chain rule on ln(xy) and product rule within.
Flashcard 27: Find dxdy for ex+y=xy.
Answer: dxdy=ex+y−xy−ex+y. Collect dxdy terms and solve algebraically.
Flashcard 28: Differentiate x2−xy+y2=7 implicitly.
Answer: 2x−y−xdxdy+2ydxdy=0. Apply power rule to x2 and y2, product rule to xy.
Flashcard 29: Find dxdy for y2+yx=1.
Answer: dxdy=x+2y−y. Factor dxdy and solve for it algebraically.
Flashcard 30: Differentiate x+y1=x−y implicitly.
Answer: −(x+y)21(1+dxdy)=1−dxdy. Use chain rule on x+y1=(x+y)−1.