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  • Class 12 Maths Study Material

Digitization help student to explore and study their academic courses online, as this gives them flexibility and scheduling their learning at their convenience. Kidsfront has prepared unique course material of Maths Determinants for Class 12 student. This free online Maths study material for Class 12 will help students in learning and doing practice on Determinants topic of Class 12 Maths. The study material on Determinants, help Class 12 Maths students to learn every aspect of Determinants and prepare themselves for exams by doing online test exercise for Determinants, as their study progresses in class. Kidsfront provide unique pattern of learning Maths with free online comprehensive study material and loads of Class 12 Maths Determinants exercise prepared by the highly professionals team. Students can understand Determinants concept easily and consolidate their learning by doing practice test on Determinants regularly till they excel in Maths Determinants.


Determinants
is equal to?

a) 1 + a2 + b2 + c2
b) 1 - a2 + b2 + c2
c) 1 + a2 + b2 - c2
d) 1 + a2 - b2 + c2


✔Answer
Correct Answer Is : 1 + a2 + b2 + c2
Solution Is :
If A = , then cofactors of the elements of 2nd row are?

a) (39, -3, 11)
b) (-39, 3, 11)
c) (-39, 27, 11)
d) (-39, -3, 11)


✔Answer
Correct Answer Is : (-39, 27, 11)
Solution Is :
The value of x, if = 0, is equal to?

a) ±√6
b) ±√2
c) ±√3
d) √2 , √3


✔Answer
Correct Answer Is : ±√2
Solution Is :
The determinant is equal to zero, if a, b, c are in?

a) G. P.
b) A. P.
c) H. P.
d) None of these


✔Answer
Correct Answer Is : G. P.
Solution Is :
Value of λ for which the homogeneous system of equations 2x + 3y - 2z = 0, 2x - y + 3z = 0, 7x + λy - z = 0 has non-trivial solutions is?

a) 57/10
b) (-57/10)
c) 81/10
d) 55/10


✔Answer
Correct Answer Is : 57/10
Solution Is :
If a, b, c are in A.P. , then the value of is?

a) X - (a + b + c)
b) 9x2 + a + b + c
c) A + b + c
d) 0


✔Answer
Correct Answer Is : 0
Solution Is :
is equal to?

a) (p - q)(q - r)(r - p)
b) Pqr
c) Zero
d) 3pqr


✔Answer
Correct Answer Is : Zero
Solution Is :
The value of is?

a) 8
b) -8
c) 400
d) 1


✔Answer
Correct Answer Is : -8
Solution Is :
Let = x + iy, then

a) X = 3, y = 1
b) X = 0, y = 0
c) X = 0, y = 3
d) X = 1, y = 3


✔Answer
Correct Answer Is : X = 0, y = 0
Solution Is :
If = k, then = ?

a) 6k
b) K/6
c) 2k
d) 3k


✔Answer
Correct Answer Is : 6k
Solution Is :

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