- #1
ainster31
- 158
- 1
Context:
In the video, he divides out a variable as below:
$$r^2=2rsin\theta\\r=2sin\theta$$
When you do a division like this, aren't you dividing out a variable?
What happens if you take the square root of both sides like below?
$$r^2=2rsin\theta\\|r|=\sqrt{2rsin\theta}$$
Would that be more correct?
In the video, he divides out a variable as below:
$$r^2=2rsin\theta\\r=2sin\theta$$
When you do a division like this, aren't you dividing out a variable?
What happens if you take the square root of both sides like below?
$$r^2=2rsin\theta\\|r|=\sqrt{2rsin\theta}$$
Would that be more correct?
Last edited by a moderator: