Question
I. 2x² - 12x + 16 = 0 II. 4y² - 8y -
12 = 0Solution
I. 2x² - 12 x + 16 = 0 2x² - 8x - 4x + 16 = 0 2 x (x – 4) – 4 ( x – 4 ) (2 x – 4 ) (x – 4) x = 4, 2 II. 4y² - 8 y - 12 = 0 4y² - 12y + 4 y - 12 = 0 4 y (y – 3) + 4 ( y – 3 ) (4y + 4 ) (y – 3) y = - 1, 3 Hence relationship between x and y cannot be established.
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:
