## 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 $\lfloor -2.3 \rfloor =-3$
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

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