Question
If where r = 1, 2, 3 and = 0 …etc, then, is equal to
- -1
- 1
- 2
- 3
The correct answer is: 1
Related Questions to study
If A and B are two non-singular square matrices of the same order, the adjoint of AB is equal to
If A and B are two non-singular square matrices of the same order, the adjoint of AB is equal to
If I =, J = and B = , then B equals
If I =, J = and B = , then B equals
If A′ is the transpose of a square matrix A, then
If A′ is the transpose of a square matrix A, then
If = 72, then n is equal to
If = 72, then n is equal to
The determinant is equal to zero if
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Equation of the line passing though the point of intersection of the lines x + 2y – 3 = 0 and x
+ y –2 = 0 and also through the point (2, 1) is
For such questions, we should know different formulas to find equation of line.
Equation of the line passing though the point of intersection of the lines x + 2y – 3 = 0 and x
+ y –2 = 0 and also through the point (2, 1) is
For such questions, we should know different formulas to find equation of line.
The locus of the point which moves so that the square of its distance from the point (3, 0) is
equal to 7 is
Locus of a point means path traced by the given point while satisfying the given conditions. For such questions, we should know distance formula.
The locus of the point which moves so that the square of its distance from the point (3, 0) is
equal to 7 is
Locus of a point means path traced by the given point while satisfying the given conditions. For such questions, we should know distance formula.
The area of triangle with vertices at (–4, –1) , (1, 2), (4, –3)
Here, the area of a triangle cannot be negative. Hence only the numerical value is considered.
The area of triangle with vertices at (–4, –1) , (1, 2), (4, –3)
Here, the area of a triangle cannot be negative. Hence only the numerical value is considered.