Oxford University Admission Entrance Tricks || Be Careful!!

[@manojchaugule794]

its very nice solution

[@DarshChouhan-r6g]

Good teaching

[@aruntiwari5714]

Nice explanation

[@satyadev3848]

well explained

[@KeshavKulkarni-x1w]

Perfect 🥰

[@nicolasfonteneau0310]

Hello madam. I'm french so i apologize if i do mistake with my english. Instead of looking for (-2)^x=2 , i tried with (-2)^x=4. Obviously we know the answer x=2. But doing the same demonstration i found x=2ln2/(iπ+ln2). Why this is a real number? Why this is equal to 2?

[@arvindkulkarni6580]

Good evening mam

[@LaxmanKumar-yi4cv]

Good morning

[@themieljadida4459]

Minus minus two........
Good bad good.bad bad ....

[@olafvanditzhuyzen4830]

1

[@Nikioko]

(−2)^x = 2
x ⋅ ln(−2) = ln(2)
x = ln(2) / ln(−2)
x = ln(2) / [ln(2) + ln(−1)]
x = ln(2)/ln(2) + ln(2)/ln(−1)
x = 1 + ln(2)/(π ⋅ i)

[@nicolasfonteneau0310]

x = ln(2) / [ln(2) + ln(−1)]
x = ln(2)/ln(2) + ln(2)/ln(−1) ? Are you sure that a/(b+c) = a/b+ a/c... I think it's (a+b)/c = a/c+ b/c

[@Nikioko]

​@@nicolasfonteneau0310 Yes, you are right.
x = ln(2) / [ln(2) + ln(−1)]
x = ln(2) / [ln(2) + π ⋅ i]
I was a bit sloppy.

[@harikishan1900]

Nice explanation