Question
If the roots of the quadratic equation 7y² + 5y + 9 = 0 are α and β, then find the value of [(1/α) + (1/β)].
Thus, (1/α) + (1/β) = -5/9 .More Quadratic equation Questions
- Find the coefficient of x³ in (2x − 3)⁶.
- I. 2y² - 3y – 14 = 0 II. 3x² - 7x + 4 = 0
- I. 8y2 - 2y - 21 = 0 II. 2x2 + x - 6 = 0
- In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between x and y. I. 3x2 - 13x + ...
- I. 40 x² - 93 x + 54 = 0 II. 30 y² - 61 y + 30 = 0
- I. 195x² - 46x - 21 = 0 II. 209y² + 13y - 12 = 0
- I. 2y2 - 37y + 143 = 0 II. 2x2 + 15x – 143 = 0
- The nth term of a sequence is n² + 3n + 1. Find the difference between the 20th and 10th terms.
- I. 3x2 - 16x - 12 = 0 II. 2y2 + 11y + 9 = 0
- I. 63x2 + 148x + 77 = 0 II. 21y2 + 89y + 88 = 0
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