# iostream007

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bio website facebook.com/dhirendra005 location India age 25 member for 1 year, 7 months seen yesterday profile views 633

I am a java developer and currently working on Petri Net.I love mathematics (main areas are integral,differential, calculas, geometry,probability) .

 22 Matrix to power $2012$ 13 Integration exercise: $\int \frac{e^{5x}}{ (e^{2x} - e^x - 20) }dx$ 10 My sister absolutely refuses to learn math 6 Solve these equations simultaneously 5 How to solve $e^{ix} = i$

# 3,351 Reputation

 +5 find the value of $\int \frac {x^2}{({x\sin x+\cos x})^2}\,dx$ +10 Prove $\sin(A+B)\sin(A-B)=\sin^2A-\sin^2B$ -2 How does $\frac{\sqrt{3}}{2} = \sqrt{\frac{3}{4}}$? +15 How do we calculate factorials for numbers with decimal places?

# 20 Questions

 10 calculate $x^{206}+x^{200}+x^{90}+x^{84}+x^{18}+x^{12}+x^{6}+1$ given $(x+x^{-1})^2 = 3$ 6 How to find area of triangle from its medians 6 Find the value of $x^3-x^{-3}$ given that $x^2+x^{-2} = 83$ 4 Relation between chords length and radius of circle 4 How to solve this simultaneous equation of $3$ variables.

# 75 Tags

 38 trigonometry × 38 23 calculus × 21 32 algebra-precalculus × 37 22 matrices 31 integration × 24 17 logarithms × 12 28 exponentiation × 6 11 exponential-function × 2 26 linear-algebra × 6 10 geometry × 18

# 6 Accounts

 Mathematics 3,351 rep 637 Stack Overflow 127 rep 9 Physics 121 rep 1 Stack Apps 101 rep 1 Signal Processing 101 rep 2