Edexcel A level Maths: 1.1 Proof By Contradiction

Pearson A level Maths, Pure Year 2 textbook (1.1)

In this video I cover:

1. Negation Statement
2. Ration and Irrational Numbers
3. Proof By Contradiction

[AYADN]

How is he this good at explaining hard concepts it honestly baffles me, my teachers explanations were so bad and hard to understand but Zeeshan explained it absolutely brilliantly.God bless you!

[kuma]

Mate Iv finished my a levels I just love this guy😂❤️💯

[adenlaszlo]

Zeeshan has explained this in 13 minutes better than my maths teachers had throughout the year, thank you!

[SophieB_]

thank you so much for this I take further math and I have to finish my A level math exam in 1 year and this video really helped!!!

[olenamakarova]

this is a very good and detailed explanation thank you so much for the lesson

[baburlu]

selam, but if n is not a multiple of 3, cant it be 3k - 1 or 3k + 2?

dont we need to do them all?

[nadineabusaleh]

i did not understand example 3) we said that n must not be multiple of 3 however we wrote it as n=3k+1 , as we can factorise it to n=3(k)+1 and it is a multiple of 3 ?

[HonyaHikmatQadr]

Ifn is an odd number then n^4 is also an odd number. Please answer that

[benwebber]

What if n squared was 3? Then n would be root 3 and therefore not a multiple of three?