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Educational Level
Secondary school, High school and College
Program Purpose
Provide step by step solutions of your problems using online calculators (online solvers)
Problem Source
Your textbook, etc

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9. BCD and Excess 3 Addition and Subtraction using 9's or 10's complement Method on 22.08.19
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10. Conversion on 22.08.19
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Unitary Method 18.07.19
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Probability 17.07.19
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Problem on Ages 16.07.19
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Quadratic equations (Solution by considering m) on 10.07.19
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59. Matrix Algebra on 17.03.19
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`[[2x,3y],[3x,4z]]`
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`[[-5i,3i],[4i,5i]]`
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`[[1/sqrt(2),sqrt(2)],[4,-5]]`
60. PERT and CPM on 10.03.19
1. Network diagram
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2. Critical path, Total float, Free float, Independent float
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3. Project scheduling with uncertain activity times (Optimistic, Most likely, Pessimistic)
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4. Project crashing to solve Time-Cost Trade-Off with fixed Indirect cost
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5. Project crashing to solve Time-Cost Trade-Off with varying Indirect cost
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61. Transportation Problem
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67. All problem solution using search box on 05.10.18
68. Share solution on facebook, twitter with your friends on 17.08.18
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70. Algorithm, Formulas, Examples added at respective pages on 20.07.18
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72. Statistical Methods on 30.03.18
1. Permutation & combination
1. Find `n!`
2. Find `(n!)/(m!)`
3. Find `{::}^nP_r`
4. Find `{::}^nC_r`
5. How many words can be formed from the letters of the word daughter?
6. How many ways a committee of players can be formed ?
7. Permutation, Combination List
2. Probability
1. Coin
2. Dice
3. Cards
4. Balls
73. Calculus
1. Trigonometry on 20.03.18
1. Simplifying trigonometric equations, proving identities ,
eg. (1) `sin(30)*cos(60)+sin(30)*cos(60)`, (2) `tan(x)+cot(x)`, (3) `tan^2(x)-sin^2(x)`, (4) `csc(x)/cos(x)-cos(x)/sin(x)`
2.1 If `sin(x)=5/13` then Find the value of all the other five trigonometric functions
2.2 If `sin(x)=3/5` then solve expression `cos(x)csc(x)+tan(x)sec(x)`
2. Derivative on 20.03.18
1. Find Derivative ,
eg. (1) `d/(dx)(2x^(3)-2x^(2)-5x+4)`, (2) `d/(dx)(log(x)e^(x))`, (3) `d/(dx)(3cos(sin(x)))`
2. Find maximum and minimum value of `y=x^3+6x^2-15x+7`
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76. Word Problems
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77. Simplex method
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78. Game Theory
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79. Matrix operations
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80. Solve numerical differential equation using
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