Question
I. 5x² -14x + 8 = 0 II. 2y² + 17y + 36 =
0 In the following questions, two equations numbered I and II are given. You have to solve both the equations and give answer.Solution
I. . 5x² -14 x + 8 = 0 5x² - 10x - 4x + 8 = 0 5x(x-2) - 4 (5x – 2) (x -2 ) (5x-4) x = 2, 4/5 II. 2y ² - 17y + 36 = 0 2y ² + 9y + 8y + 36 = 0 y ( y + 9) + 4( y + 9) (y + 4) (2y + 9) y = - 4, -9/2 Hence, x > y
The ratio of the outer and the inner circumference of a circular path is 5: 4. If the path is 100 meters wide, then what is the radius of the inner circle?
If tanx+secx=3, then the number of real solutions in [0,3π] is:
{√676.12 + 13.012 – 146.89 } = ?
If sin⁴ x + cos⁴ x = 5/8, then the value of sin2x is
In an exam Dinesh scored 362 marks and Shivam got 68 % marks in the same exam which is 12 marks more than Dinesh. If the minimum passing marks in the ex...
Find the simple interest on Rs 1040 at 12% per annum for 2 years?
The following table shows the number of students enrolled in different courses at a university:
The ages of P, Q, and R are in the ratio 2:3:5. After 5 years, the sum of their ages will be 75 years. What are their present ages?
f(x)=x+ ∣ x ∣ , then the function is:
