blackpenredpen

math for fun 

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123
blackpenredpen
Feb 06, 2019

Any video ideas?

in Math Problems

If you have any math discovery or fun problem that you want me to present in a video, please leave it here (with solutions hopefully). I will try my best to make it into a video for you and will credit you in the video.

79 comments
Yrc Murthy
Feb 06, 2019

Sir, I have this new Idea what if you have trigonometric ratios to a base i.e. sin 90 to base π is 1 ? I'm working on it and I named it Trigology. Sir, I want you to help me out.

0
blackpenredpen
Feb 09, 2019

Ok! Thanks! I will be interested to take a look.

Yrc Murthy
Mar 08, 2019

@blackpenredpen okay sir, will you make a video on it ?

Mursaleen
Feb 06, 2019

Can you please explain why we add "2kpi" when finding complex roots? And also show the roots on the Argand diagram, giving us a detailed explanation? Thanks.

0
Megha Jogithaya
Feb 07, 2019

Hi,

Can you please solve the question in the image?


Elliot Ede (Student-6F)
Feb 07, 2019

Can’t you just solve it graphically? Set theta equal to your equation, which is in terms of theta, in a graphing calculator (unless you are not allowed to use a calculator)

0
Megha Jogithaya
Feb 07, 2019

This is a question from a JEE Advanced paper.

Another thing, does this site have a glitch? Because the typed text is shown in wrong order.

0
ahaar13
Feb 09, 2019  ·  Edited: Feb 09, 2019

I just wrote up a solution :) Here's a link to the pdf file: https://drive.google.com/file/d/1U3MJz4kklkZjAqbl6pbKg5w0bJ1wqqhr/view?usp=sharing