## Search found 38 matches

- Thu Jan 20, 2011 3:31 pm
- Forum: Algebra
- Topic: Calculate value of expression.
- Replies:
**1** - Views:
**1142**

### Calculate value of expression.

If $a+b+c=0$.then find value of expression $\left(\frac{a}{b-c}+\frac{b}{c-a}+\frac{c}{a-b}\right).\left(\frac{b-c}{a}+\frac{c-a}{b}+\frac{a-b}{c}\right)=$

- Thu Jan 20, 2011 3:17 pm
- Forum: Algebra
- Topic: solving Modulus equation.
- Replies:
**0** - Views:
**1197**

### solving Modulus equation.

find value of $x$ that satisfy the equation $|x^{2011}-x^{2010}|+x^{2008}-2008=0$

- Thu Jan 20, 2011 3:12 pm
- Forum: Algebra
- Topic: quadratic equation with floor function.
- Replies:
**5** - Views:
**3092**

### quadratic equation with floor function.

Find all Real solution that satisfy the quadratic equation $6x^2+77\lfloor x \rfloor +147=0$

Where $\lfloor x \rfloor =$ Floor function.

like $\lfloor 2.3 \rfloor =2$ OR $\lfloor -2.3 \rfloor =-3$

Where $\lfloor x \rfloor =$ Floor function.

like $\lfloor 2.3 \rfloor =2$ OR $\lfloor -2.3 \rfloor =-3$

- Thu Jan 20, 2011 3:06 pm
- Forum: Higher Secondary Level
- Topic: probability
- Replies:
**3** - Views:
**5657**

### probability

Three distinct vertices are randomly chosen among the vertices of cube. The probability that they are the vertices of equilateral triangle is

- Thu Jan 20, 2011 11:16 am
- Forum: Algebra
- Topic: Trigonometric sum.
- Replies:
**2** - Views:
**1683**

### Re: Trigonometric sum.

Thanks moon.

- Wed Jan 19, 2011 4:15 pm
- Forum: Algebra
- Topic: Trigonometric sum.
- Replies:
**2** - Views:
**1683**

### Trigonometric sum.

Question..........

- Wed Jan 19, 2011 4:05 pm
- Forum: Algebra
- Topic: Find Sum of Roots
- Replies:
**4** - Views:
**2299**

### Re: Find Sum of Roots

Answer of the question...... :

- Wed Jan 19, 2011 2:43 pm
- Forum: Algebra
- Topic: hard Inequality.
- Replies:
**0** - Views:
**1189**

### hard Inequality.

If $a,b,c,d>0$ and $a+b+c+d=1$. Then prove that $\frac{3}{8}+32abcd \geq \frac{ab}{a+b}+\frac{bc}{b+c}+\frac{cd}{c+d}+\frac{da}{d+a}$