Question

calc

Answer 1

can someone help me with these 2 questions

Answer 2

which step are you stuck ?

Answer 3

For one, I was trying to follow the solution sheet, but I couldnt get it

Answer 4

they got rid of tan but I dont see how they did that

Answer 5

can you show us couple of steps...or the last step that you are sure is correct ?

Answer 6

I started to understand implicit but kinda got stuck again

Answer 7

derivative of tan^-1 x is ?

Answer 8

okay hold on anddd um not sure of inverse

Answer 9

1/sec^2x?

Answer 10

oh 1/1+x^2?

Answer 11

yes

Answer 12

so , applying chain rule
derivative of tan^-1 u will be
1/(1+u^2) du/dx

Answer 13

Okay lemme try and I will show you what I have after ?

Answer 14

u = 2x^2 y

Answer 15

sure,

Answer 16

okay gimme 5 mins

Answer 17

for the x+4xy^2 part

Answer 18

No stuck on that part, Im a bit confused

Answer 19

on what to do there

Answer 20

derivative of x is just 1
for
4xy^2
you'll need product + chain rule

Answer 21

okay so then, 8x dydx + 2y dydx?

Answer 22

no I think I did it wrong

Answer 23

4 (d/dx (x) y^2 + x d/dx (y^2))

= 4 ( y^2 + x [2y dy/dx] )

Answer 24

see if you get that application of product rule ^^