Algebra

If |x - 1| = 2x, what is the value of x?

2 - [2 - {2 - 2 (2 + 2)}] = ?

যদি x = - 3 হয় এবং y = 2 হয়, তবে xy² = কত?

If one of the roots of the quadratic equation x² + mx + 24 = 0 is 1.5, then what is the value of m?

In set S there are four numbers. Three of the numbers are 13, 29 and 41, and the fourth number is X. If the mean of the set is less than 25, what could be the value of X?

√(11² + 3⁴ × 7 - 13² +10) =? 

x² - x - 12 = 0 সমীকরণের মূলদ্বয় নিচের কোনটি?

If f(x) = x/(x - 2) then value of f^{- 1}(2)?

2√3 + √3 =

If a + 1, 2a + 1, 4a - 1 are in Arithmetic Progression, then the value of ‘a’ is -

If x³ < x² < x, then the value of x could be

The operation @ is defined for all integers x and y as x @ y=xy-y. If x and y are positive integers, which of the following cannot be Zero?

If 4x - 3y = 13 and 5x + 2y = - 1, then x = ?

If A = {1, 2, 3) and B = {1, 2, 5), then A - B.

If determinant of a matrix A is Zero than :

আরিফ ও আকিবের বয়সের অনুপাত 5 : 3; আরিফের বয়স 20 বছর হলে, কত বছর পর তাদের বয়সের অনুপাত 7 : 5 হবে?

Where does p lie if p² < p?

Given that 1² + 2² + 3²..... + 10² = 385, what is the value of 3² + 6² + 9² + .....30²?

If (x/y) + (y/x) = 6 the value of (x³/y³) + (y³/x³) is -

A Zoo keeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo?