Search found 38 matches

by jagdish
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 $\left(\frac{a}{b-c}+\frac{b}{c-a}+\frac{c}{a-b}\right).\left(\frac{b-c}{a}+\frac{c-a}{b}+\frac{a-b}{c}\right)=$
by jagdish
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 $|x^{2011}-x^{2010}|+x^{2008}-2008=0$
by jagdish
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 $\lfloor -2.3 \rfloor =-3$
by jagdish
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
by jagdish
Thu Jan 20, 2011 11:16 am
Forum: Algebra
Topic: Trigonometric sum.
Replies: 2
Views: 1683

Re: Trigonometric sum.

Thanks moon.
by jagdish
Wed Jan 19, 2011 4:15 pm
Forum: Algebra
Topic: Trigonometric sum.
Replies: 2
Views: 1683

Trigonometric sum.

Question..........
by jagdish
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...... :
by jagdish
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 $\frac{3}{8}+32abcd \geq \frac{ab}{a+b}+\frac{bc}{b+c}+\frac{cd}{c+d}+\frac{da}{d+a}$