Freeguy
Senior Member
- Joined
- Oct 4, 2013
- Member Type
- English Teacher
- Native Language
- Persian
- Home Country
- Iran
- Current Location
- Iran
In geometry, an ellipse may be defined as the locus of all points ..... distances from two fixed points is constant.
1. which as the sum of
2. of the sum which
3. whose sum of whose
4. whose sum that the
I can't understand the structure of No.3. How can we use two whose or which, for example, together?
Thanks!
1. which as the sum of
2. of the sum which
3. whose sum of whose
4. whose sum that the
I can't understand the structure of No.3. How can we use two whose or which, for example, together?
Thanks!