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Shubham Agrawal
IIT Roorkee Grad. IIM L |Dropout. SBI PO 2017 Topper and Dropout. Full Time Educator.

U
Unacademy user
mam 31 Q is it phase 1 or phase3
Vikram Kumar
2 years ago
phase I
  1. Algebra


  2. About Me Shubham Agrawal IIT Roorkee 2013 graduate IIM Dropout SBI PO under 100 ranker (dropout) Left job to pursue my passion- Education


  3. Algebra Linear Equations with 1 variable Linear Equations with 2 variables Quadratic Equations Polynomial


  4. Linear Equation with 1 variable


  5. Applications Q. The denominator of a rational number is greater than its numerator by 4. If 4 is subtracted from the numerator and 2 is added to its denominator, the new number becomes 1/6. Find the original number.


  6. Applications Q. The denominator of a rational number is greater than its numerator by 4. If 4 is subtracted from the numerator and 2 is added to its denominator, the new number becomes 1/6. Find the original umber. 6


  7. Applications Q. 5/7 of 4/15 of a number is 8 more than 2/5 of 4/9 of the same number. What is half of that number?


  8. Applications Q. 5/7 of 4/15 of a number is 8 more than 2/5 of 4/9 of the same number. What is half of that number? 2 l i S


  9. Linear Equation with 2 variables


  10. Concept Usually of the form ax + by +c o Represents a line in x y plane For every value of x, there's a corresponding value of


  11. Concept If there are 2 equations of the form 1st Method 2 2. 25 , b CA 2 2. 2.


  12. Question -2


  13. Concept If there are 2 equations of the form 2nd Method Subtract or add one equation with the other to eliminate either x or y


  14. Concept Needs 2 equations to find the unique value of the 2 variables If i then infinitely many solution (as it's a2 b2 C2 the same equation)


  15. Applications /2 2


  16. Applications Q. The ratio of the ages of the father and the son at present is 3: 1. Four years earliar, the ratio was 4: 1. What are the present ages of the son and the father? 2 Methods:


  17. Applications Q. The ratio of the ages of the father and the son at present is 3: 1. Four years earliar, the ratio was 4: 1 What are the present ages of the son and the father? 3 12_


  18. Concept . Degree (or power) of one variable is 2 General form: ax2 + bx +c0 where a, b and c are all real numbers and a 0. Example: 2x2 - 5x + 3 0


  19. Question Q. Solve 2x2 +6-7x


  20. Question Q. Solve 2x2 + 6 7x 2 1 -3 2 3 2