vivekjain0908
New Member
- Joined
- Mar 15, 2022
- Messages
- 23
- Gender
- Undisclosed
- HSC
- 2022
Confused on how to approach this q.
Help (1 Viewer)
- Thread starter vivekjain0908
- Start date
Confused on how to approach this q.
Perhaps the following would be useful in terms of part (i) and part (ii):
Differentiate both sides of the equation:
=\frac{d}{dx}\left(9\right))
Differentiate the left side of the equation:
Since 9 is a constant with respect to 𝑥, the derivative of 9 with respect to 𝑥 is 0.
Reform the equation by setting the left side equal to the right side:
Solve for
Replace with 
I hope this helps!
Differentiate both sides of the equation:
Differentiate the left side of the equation:
Since 9 is a constant with respect to 𝑥, the derivative of 9 with respect to 𝑥 is 0.
Reform the equation by setting the left side equal to the right side:
Solve for
Replace
I hope this helps!
chilli 412
oo la la
- Joined
- Apr 13, 2022
- Messages
- 250
- Gender
- Male
- HSC
- 2023
for part (iii), think about at what point on the circle will the tangent line be undefined (a vertical line as the slope)
recall that for eq of circles, x^2 + y^2 = r^2
so we know that -3 and 3 are the radius of the circle on the x axis
the slope at these points would be a vertical line, hence undefined
recall that for eq of circles, x^2 + y^2 = r^2
so we know that -3 and 3 are the radius of the circle on the x axis
the slope at these points would be a vertical line, hence undefined
