Messages posted by ultimator

Hi ppl

I thought i did well last time, but got a score of only 194.

I think i've done well, again this time...

Do u think tat i should check the solutions now itself ? Or should i relax myself, sleep n check in the morning ?

1 + 2 xyz = 1 + 2 ( (ln12/ln24)*(ln24/ln36)*(ln36/ln144))= 1 + 2 ( ln(12)/ln144)= 1 + 2 ( 1/(ln144 to the base 12)=1 + 2/2=2

The length of minor axis = 2b units

Distance from focus to one end of minor axis = and this is equal to 2b

(ae)² = 3b²

e² = 3(b²/a²) = 3(1-e²)

4e²=3

Therefore, e is root(3)/2 ...

gud job... v helpful

I meant a group like CH₃-CH(OH)-R group where, when viewed from one end, the hydroxy group is attached to the second carbon, which is adjacent to the terminal carbon. This is oxidised to a methyl keto group CH₃-CO- group during the iodoform reaction itself.

And for the 1st one, i think its because of the greater stability of formation of cation by the allyl group. The stability is due to resonance in the allyl group. Therefore, ethanolic KCN, a base, can substitute the Cl group with a CN group more readily as the carcocation formed is more stable...

I dont think the second one is a test for all alcohols.It is a test for methyl keto group or substances like alcohols with -OH group at the second position which can be oxidised to a methyl keto group....It doesnt happen for other alcohols like 3-pentanol, etc...

I used to face the same problem. But i found a great way to overcome it.

Always keep a formula book next to u, while solving problems... Whenever a question is given write the relevant details in terms of equations and also draw a rough diagram.

After solving quite a few problems, remembering formulae wouldnt be a problem.

U r sure to find conics an easy topic then !

9600 = (2⁷)(3¹)(5²)

No. of divisors is (7+1)(1+1)(2+1) = 8*2*3 = 48

For any given number, split into factors of powers of primes, like done above. Then let the powers be a,b,c.... etc. No of divisors is given by (a+1)(b+1)(c+1)...

That's just it.

To put it in a better way, the function is not a continuous function, as its applicable only for integers. Therefore, no derivative is possible for such a non-continuous function...

We know that

absolute value of(|z| -|1/z|) < |z +1/z| < |z| + |1/z|

|z| + |1/z| takes the highest value when |z| or |1/z| is the highest. From the inequality of |z|, it is obvious that |z| + |1/z| takes highest value when |z| is substituted by 4, which gives

4 + 1/4 = 17/4 which is the highest value.

absolute (|z| - |1/z|) takes the least value when |z| = |1/z| which means |z|=1, which also satisfies the inequality.

Therefore least value is 1 - 1/1 = 0.

I have mentioned absolute value, which means the positive value of the expression, while | means absolute magnitude of the complex number.

Cheers !!

Yes. Even i think the answer is answer is 1/3.

p>q

This is because when u sell, u sell q% of (p+100)% of initial t 100% of initial goats. And when initial and final values r equal, it simply implies that p must be greater than q.

Take for example, 10% addition on 100Rs gives 110Rs, while 10% deduction of that 110 Rs gives only 99 Rs, which is less than 100. If some1 wants, i can give the simple mathematical proof too.

It is (1/3)*(99....9)(k+1 times) and not 1/(3*(99...99)(k+1)) times as u think.

Am here.

Federer rules !!! What an awesome comeback !

Same here ! Plz tell...... I dint get my brochure too... I jus looked thru instructions in the net.

Will we fisrt of all get a brochure ???

rotfl !!!!!!!

I wont be sentenced to four years in prison.

or

I will be sentenced to six years in prison.

Simple..... :p

All of us know colombo is in sri lanka. It IS the closest to the equator.

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