@@JJONLINEMATHSCLASSchannel Finding by try and error is as good than anything else ( specially when it's way faster) if there is no interdiction to do so. To be totally complete, one should also prove that 9^x - x^4 is increasing for x > 2 . This can be done by induction (x belong to N)
❤👍is clicked
Good job my precious JJ.
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Thank you for the interesting lectures beautiful lady.
Now I have realized that my mathematics teacher was the problem for me. This one is elaborating clearly.
Mathematics is very easy.
Thanks for the compliment but I believe your teacher is also the best. Maybe you didn't understand because you were younger.
I solved problem before watching your video and got the correct answer. I must be getting smarter.
That's great to hear! Keep practicing and you'll continue to improve.
If this was my teacher, then, I would be mathematically calculated now. 😂😂😂😂😂.
Thank you
Why you didn't solve the problem by using Logarithms?
Please answer my question❤
Well. You asked for x in N. Most of people would then try 0 , 1 , 2 (bingo) and that's it because 9^x - x^4 > 65 if x >= 2
Yes but when they are asked to explain how they got 2, what will they do?
@@JJONLINEMATHSCLASSchannel Finding by try and error is as good than anything else ( specially when it's way faster) if there is no interdiction to do so. To be totally complete, one should also prove that 9^x - x^4 is increasing for x > 2 . This can be done by induction (x belong to N)