Hi
Yes that's it
For the second example you made a typing error :
C1 exam tormorrow, got some last minute questions.
5.The equation , where k is a constant, has no real roots.
Find the set of possible values of k.
So I use ?
If the question said:
5.The equation , where k is a constant, has equal roots.
I would use: ?
And if the question said
5.The equation , where k is a constant, 2 real roots.
I would use: ?