Weekend fun 61, Math jokes

A lazy Sunday, back to some math humor :-)

For non-Filipino readers, the last equation, right hand side means sob.
An engineer-economist friend commented that "pilit ang humor" because of the x = gina.
hehe, true, it was "coerced" to produce some funny conclusion. Just for fun.

Below, scattered memes and equations I  got  from  the  web. Witty and funny, like the infinity vs. 5, drink and derive.

And the obtuse triangle, the  square of 3 and cube of 3. A pi has an endless decimal, so very witty to say to get its last 4 digits.

More.

Election is coming, there should be part 2 of Political jokes soon.
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See also:
Weekend fun 17: Political jokes, May 15, 2011
Weekend fun 22: Functions and Equations, September 17, 2011
Weekend fun 23: Economist Jokes, September 24, 2011
Weekend Fun 27: Physics Jokes, January 21, 2012

Weekend Fun 58: Mugabe Falls, February 08, 2015 

Weekend Fun 59, Laglag bala extortion at PH airports, November 06, 2015

Weekend Fun 60, Equality vs. equity, sameness vs. fairness, justice vs. laziness, January 30, 2016