MCQ Bank

The commutative law of Boolean algebra states that A + B equals:

The relational algebra projection operation (pi) is used to:

The distributive law of Boolean algebra states that A(B + C) equals:

The relational algebra selection operation (sigma) is used to:

The relational algebra operation that combines two relations based on a common attribute is:

The value of i^4 where i = √(-1) is:

The solution set of the inequality 2x - 3 > 5 is:

The magnitude of the vector 3i + 4j is:

If A = {1, 2, 3} and B = {2, 3, 4} then A ∩ B is:

The determinant of the 2×2 matrix [[2, 3], [1, 4]] is:

If log₂ 8 = x then the value of x is:

What is the standard algebraic formula for the magnitude of the centripetal force required to keep an object of mass $m$ moving at velocity $v$ in a circle of radius $r$?

An automated data center logs systemic cyber security threats. If the count of anomalous events doubles every 4 hours, and the system registers 50 events initially, what will the total event log count be after 24 hours?

A specialized digital filing matrix determines transactional server processing overhead using the algebraic function $f(x) = x^2 - 12x + 32 = 0$. What are the mathematical roots (solutions for x) of this performance equation?

A firm purchases 2 computer units and 3 printer units for a total of 130,000 PKR. A second order contains 4 computer units and 1 printer unit for 210,000 PKR. What is the individual cost of a single computer unit?

An enterprise's total operational cost is given by the linear function C(x) = 150x + 50,000, where x represents units manufactured. If the total cost incurred was 125,000 PKR, how many units were produced?

Find the roots of the equation x^2 - 8x + 15 = 0.

Find the roots of the equation x^2 - 9 = 0.

Find the roots of the equation x^2 - 7x + 12 = 0.

Find the roots of the quadratic equation x^2 - 5x + 6 = 0.