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Mathematics and physics puzzles!


Posts: 738

yay okay, so let's start with a nice doodleydoodle

 

if a,b>1 prove:

 a+b < 1+ab

Posts: 1110
0 votes RE: Mathematics and physic...

(b - 1) (1 - a) < 0

A shadow not so dark.
Posts: 738
0 votes RE: Mathematics and physic...

right answer, now a fun silly question

 

At the island go to the gallows (which is represented by the
point G in Fig. 1) and from there walk in a straight line to the
pine tree (the point P in Fig. 1), measuring the distance. At the
pine tree turn through a right angle to the left and walk the
same distance in a straight line. Again, from the gallows walk
to the oak tree (represented by the point O in Fig. 1), measuring
the distance, turn through a right angle to the right and walk
the same distance. Join these two end points (represented by the
points E1 and E2 , respectively, in Fig. 1) and you will find the
treasure (it is the point T of Fig. 1) at the mid-point.

Finding the treasure with such detailed instructions at one's
disposal could present no difficulties. Difficulties did arise, however.
When the treasure hunter went to the island, he found that
the gallows was gone without trace, but the trees were still there.
Nevertheless he found the treasure. How did he manage to do
this?

Posts: 1110
0 votes RE: Mathematics and physic...

https://imgur.com/a/PZNhX

A shadow not so dark.
Posts: 738
0 votes RE: Mathematics and physic...

prove that in an equation

x^2 +bx+c=0

the two x terms always add up to b

Posts: 738
0 votes RE: Mathematics and physic...

 -b*

Posts: 738
0 votes RE: Mathematics and physic...

going top ost solution to physics one in a bit

Posts: 738
0 votes RE: Mathematics and physic...

prove that in an equation

x^2 +bx+c=0

the product of the 2 x terms is always c

Posts: 1110
0 votes RE: Mathematics and physic...

By Vieta's formulas it's trivial. Pls more math, I don't like physics, too real.

A shadow not so dark.
Posts: 738
0 votes RE: Mathematics and physic...

physics IS math

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