Mathematics
Assertion (A): The distance between the point A(x, 2x) and point B(x, 0) is 4 units, then point B = (2, 0). Reason (R): √(x - x)^2 + (2x - 0)^2 = 4 ⇒ x^2 = 4 and x = ± 2 ∴ B = (2, 0) or (-2, 0) 1. A is true, R is false. 2. A is false, R is true. 3. Both A and R are true. 4. Both A and R are false.
Related Questions
Assertion (A): The graph of 2x = 1 is a line parallel to y-axis.
Reason (R): The equations of the form x = ± k are always parallel to y-axis.
- A is true, R is false.
- A is false, R is true.
- Both A and R are true.
- Both A and R are false.
Assertion (A): The cost of manufacturing x identical articles is ₹ 5(30 + x) and their selling price is ₹ 8x. The number of these articles manufactured and sold to break even is 50.
Reason (R):
5(30 + x) = 8x
150 + 5x = 8x ⇒ x = 50- A is true, R is false.
- A is false, R is true.
- Both A and R are true.
- Both A and R are false.