Question
If sin θ and cos θ are the root of standard Quadratic
Equation , then which of the following is true ? 1. a2 + b2 - 2ac = 0 2. b2 - a2 + 2ac = 0 3. a 2 + b 2 + 2ac = 0 4. a 2 - b 2 + 2ac = 0Solution
- What will come in place of the question mark (?) in the following series?
-5, -2, ?, 10, 19, 30 What will come in place of the question mark (?) in the following series?
60, 94, 184, 464, 1388, ?
21Â Â Â Â Â Â 24 Â Â Â Â Â Â 22Â Â Â Â Â Â 25Â Â Â Â Â 23Â Â Â Â Â Â Â ?Â
...226, 171, 124, 85, 54, ?
- What will come in place of (?) in the given number series.
729, 243, 81, 27, ?, 3 Find the missing number in the given number series.
2, 5, 11, 23, 47, ?72, 82, 62, 102, 22, ?
What will come in place of (?) question mark in the given number series.
13, 15, 18, 23, 30, ?
17    18      14       ?      7       32
...78, 88, 100, 114, ?, 148