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Are you having fun practicing your maths symbols.  LOL

Oh I almost forgot.

That is excellent use of that address referencing!

Hi MG

"Don't I already do that?"

Yes you do - it was just a reminder:)

----

I think the maths in the Alice in wonderland problem is above your head.  Do you understand any of it?

So...

Could you tell me the trick for the Alice and the Wonderland post?

Oh ok.

But don't I already do that?

Or am i mistaken for something else.

This is only my opinion. The only constant in life is change; through change comes observation, change cannot take place if there is no oberver as it is a dependant arising. Once an observer experiences change, the observer experiences the arisings of thoughts. Through development of thought comes understanding, and through understanding, experience. Overall, I believe the meaning of life to be the application of said experience to develop ones conscious awareness and overall being.

By Spirit Talks

P.S. I is on the YouTubes. 

$${\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{20}}^\circ\right)}}^{\,{\mathtt{2}}}{\mathtt{\,\small\textbf+\,}}\left({\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{70}}^\circ\right)}}^{\,{\mathtt{2}}}\right) = {\mathtt{1}}$$

$${\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{20}}^\circ\right)}}^{\,{\mathtt{2}}}{\mathtt{\,\small\textbf+\,}}{\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{sin}}{\left({\mathtt{70}}^\circ\right)}}^{\,{\mathtt{2}}} = {\mathtt{1.000\: \!000\: \!000\: \!000\: \!398\: \!8}}$$

$${\mathtt{5}}{\mathtt{\,\times\,}}{\mathtt{4}} = {\mathtt{20}}$$

Most of the webs doesnt work with Internet Explorer.

is better Mozilla Firefox or Google Chrime

Im the more cool in world

The area of the triangle at the base = (1/2)(10)(24)  = 120 cm^2

And the remaining side of the triangle  = √[24^2 + 10^2] = √676  = 26 cm

So we have......

Sa  = 2(120) + h(24 + 10 + 26)  = 2640    simplify

240 + h(60) = 2640 

h(60) = 2400   

h = 40 cm

And the volume is just ......   area of the base * height   =  120 (40)   = 4800 cm^3

Yeah, Melody......I like yours better........we don't have to split the sums that way.......

Heureka's Part B method is much easier to follow.

Heureka would have got that factorisation by algebraic division.    

heureka i still dont understand the brackets part

why :x^3+6x^2+12x+16  -> (x+4)(x^2+2x+4)

You got me thinking Chris :)

$$Express $0.\overline{21}_3$ as a base 10 fraction in reduced form.$$

$$21_3=2*3+1=7$$

So we have here a sum

    $$\\0.\overline{21}_3=\frac{7}{3^2}+\frac{7}{3^4}+\frac{7}{3^6}+\frac{7}{3^8}+...\\\\
$This is the infinite sum of a GP$\\\\
a=\frac{7}{9}\qquad r=\frac{1}{9}\\\\
S_{\infty}=\frac{a}{1-r}}\\\\
S_{\infty}=\frac{\frac{7}{9}}{1-\frac{1}{9}}}\\\\
S_{\infty}=\frac{7}{9}\div \frac{8}{9}}\\\\
S_{\infty}=\frac{7}{9}\times \frac{9}{8}}\\\\
S_{\infty}=\frac{7}{8}\\\\$$

a shopkeeper is selling two model of cellphones x and y

x is old so he is selling it at a loss of 200 and

y is a leatest model so he is selling it at a profit of 500 what will be his monthly profit or loss if in a month he sells

a)10 cellphones of model x and 7 of model y

7*500-10*200

b)7 cellphone of model x and 5 of model y

5*500-7*200

Y=4sec (1/2x)

Plots:

Thanks Chris, I had not thought about doing it like that :)

a shopkeeper is selling two model of cellphones x and y

x is old so he is selling it at a loss of 200 and

y is a leatest model so he is selling it at a profit of 500 what will be his monthly profit or loss if in a month he sells

a)10 cellphones of model x and 7 of model y

7*500-10*200

b)7 cellphone of model x and 5 of model y

5*500-7*200

Thanks Radix,

We are very pleased that you have been answering questions on this English forum lately  

Hello Melody, Chris and Alan !

That was a very good deal of work ! Thank you all !

Greetings radix !