/sci/ - Science & Math

>>8409629

proving stuff in lower level math, like really close to the definitions is just using said definitions.

like x*0 = 0 because identity, similarly x*0 = 0*x because commutativity(I think is what it's called) so 0*x = 0.

You really don't have to think, since you are playing really close to the definitions just use it.

>>8408330

I think there are 3 possible and in fact only 3 possible cases:

2 heads - > 10 triangles
1 heads - > 5 triangles
0 heads - > 15 triangles