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on 2 years ago
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1 - A ∩ ɸ =?
- 1 - Universal set
- 2 - Empty set
- 3 - Both a & b
- 4 - None
- Answer Description :
The answer is b. Empty set.
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2 - Order of the given matrix [2 4] is
- 1 - 2- by- 3
- 2 - 3- by- 3
- 3 - 3- by- 3
- 4 - 1- by- 2
- Answer Description :
Rows: The matrix has only one horizontal arrangement of elements, making it a 1-row matrix. Columns: It has two vertical arrangements of elements, making it a 2-column matrix. Therefore, the order of a matrix is always specified as "rows-by-columns". In this case, we have 1 row and 2 columns, so the order is 1-by-2.
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3 - In this method, theorem proved by starting from unknown and reaching the given items.
- 1 - Analysis
- 2 - Synthesis
- 3 - Analysis-synthesis
- 4 - Demonstration
- Answer Description :
Analysis is a method of proof that begins by assuming the statement to be proved (the unknown) and then works backward, step by step, to deduce known facts or given items. It essentially reverses the logical order of the proposition, working from the conclusion back to the premises.
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4 - A formal expression of some rule or result is called
- 1 - An application
- 2 - Formula
- 3 - Theory
- 4 - Law
- Answer Description :
1 The answer is b. Formula. A formula is a concise and precise way of expressing a rule or result using mathematical symbols and expressions. It serves as a condensed representation of a relationship or calculation.
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5 - 1 radian = ?
- 1 - 180°
- 2 - π
- 3 - π/180
- 4 - 180/π
- Answer Description :
The answer is c. π/180. A radian is a unit of angular measure, defined as the angle subtended by an arc of a circle with a length equal to the radius of the circle. One radian is equal to approximately 57.2957795 degrees.
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