Question

the slope of tangent at point (h,h) of circle x2 + y2=a2 is

Answer 1

to find slope of tangent at point x=h, you will need f'(h)
so could you first differentiate
\(x^2+y^2 =a^2 \)?

Answer 2

i already do this but answer is wrong

Answer 3

what did you get ?
y' =... ?

Answer 4

i taken x and y both as h

Answer 5

yes, thats correct,
but you will plug in x=h, y=h in y' only, right ?

Answer 6

there's an easy way and a hard way for this problem.
are you doing it by analysis or by differentiation?

Answer 7

did you implicitly differentiate x^2+y^2=a^2 ?

Answer 8

no i'm simply solving it by analysing

Answer 9

look at these two points

Answer 10

not understand can anyone pls

Answer 11

This is the circle x2 + y2=a2 graphed on the coordinate plane

this is all points that can be expressed as (h,h)
x=y

Answer 12

putting the two graphs together, we have
those two points (ignore the square)

Answer 13

draw the tangents at those two points.

Answer 14

yes i got it

Answer 15

sorry for the confusion