Yes, tempting to cancel things out but If you do that.... In that case, K would be prime when it is 3, 5, 7, or 11 Think of a simpler expression 50+4 < K < 50+6. Is K Prime? If you get rid of 50 on both sides, then yes, K is prime. But if you don't get rid of 50 then K is not prime. What you are doing is basically saying that I earned a bonus of $1K at work and you were planning to spend it on a new phone. Since you are going to spend $1K anyway, you tell your boss not to pay you since you will spend it anyway... it is dangerous thinking 😂😂
I think I realised my mistake. If I’m subtracting 13! from the inequality, I will have to remove it from all three terms and not just two (as I did). So the inequality will become 0
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@40:00 We don't need to write positive in the question stem. The remainder is negative 2 which is equivalent to remainder being 1
53:58 Why can't we cancel 13! on either side of the inequality? I resolved that inequality to 0
Yes, tempting to cancel things out but If you do that.... In that case, K would be prime when it is 3, 5, 7, or 11
Think of a simpler expression 50+4 < K < 50+6. Is K Prime? If you get rid of 50 on both sides, then yes, K is prime. But if you don't get rid of 50 then K is not prime.
What you are doing is basically saying that I earned a bonus of $1K at work and you were planning to spend it on a new phone. Since you are going to spend $1K anyway, you tell your boss not to pay you since you will spend it anyway... it is dangerous thinking 😂😂
I think I realised my mistake. If I’m subtracting 13! from the inequality, I will have to remove it from all three terms and not just two (as I did). So the inequality will become 0
12:03 / 1:09:13
1. is not suff. I chose suff!
REPEATED MISTAKE. NEED TO WORK ON INEQUALITIES. AND ASSUMING variables to be integers!! RED FLAG!