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#3276 2014-11-29 15:14:38

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2128 is correct. Brilliant!

#2129. Find the value of

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#3277 2014-11-29 21:15:39

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#3278 2014-11-30 14:32:22

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2129 is correct. Marvelous!

#2130. A solid right circular cylinder has radius 7 centimeters and height 20 centimeters. Find the total surface area.

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3279 2014-11-30 22:44:58

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3280 2014-12-01 00:35:03

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2130 is correct. Excellent!

#2131. If

, find the value (in terms of
) :

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3281 2014-12-01 02:07:11

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3282 2014-12-01 14:40:28

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2131 is correct. Brilliant!

#2132. Find the value of

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3283 2014-12-01 17:00:28

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3284 2014-12-02 00:42:11

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2132 is correct. Good work!

#2133. If

, find the value of
.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3285 2014-12-02 02:31:59

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3286 2014-12-02 14:49:32

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2133 is perfect. Excellent!

#2134. Factorize :-

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3287 2014-12-02 23:36:39

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3288 2014-12-03 00:40:34

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2134 is perfect. Brilliant!

#2135. Find the value of

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3289 2014-12-03 03:33:10

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3290 2014-12-03 14:50:09

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2135 is perfect. Excellent!

#2136. The weight in kilograms of 13 students in a class are 42.5, 47.5, 48.6, 50.5, 49, 46.2, 49.8, 45.8, 43.2, 48, 44.7, 46.9, 42.4. Find the range and coefficient of range.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3291 2014-12-04 00:05:46

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3292 2014-12-04 01:12:41

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2136 is correct. Marvelous!

#2137. The vertices of a triangle ABC are A(2,1), B(-2,3) and C(4,5). Find the equation of the median through the vertex A.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3293 2014-12-04 01:21:51

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3294 2014-12-04 02:21:25

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2137 is correct. Awesome!

#2138. Find the mid point of the line segment joining the points (1,-1) and (-5,3).


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3295 2014-12-04 02:52:36

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3296 2014-12-04 14:48:02

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2138 is correct. Neat job!

#2139. Find the value of

.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3297 2014-12-04 21:28:45

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3298 2014-12-05 00:35:34

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

The solution #2139 is perfect. Excellent!

#2140. Find the common root of the equations

and
.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3299 2014-12-05 02:21:40

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,423

Re: Oral puzzles

Hi bobbym,

#2141. Find the point which divides the line segment joining the points (3,5) and (8,10) internally in the ratio 2:3.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#3300 2014-12-05 02:22:46

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

Hi;

There will be a delay, I am still working on the common root problem.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

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