20 Determinants questions from Mathematics Mock Test - 9 with detailed answers and explanations. Free previous year questions and MCQs.
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Determinants โ Mathematics Mock Test - 9(1โ20 of 20)
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Q1mediummcqMathematicsMathematics Mock Test - 62026
9% accuracy
The value of a 3ร3 determinant is 3. The value of the determinant formed by its cofactors is:
Q2mediummcqMathematicsMathematics Mock Test - 62026
4% accuracy
If โa+bb+cc+aโb+cc+aa+bโc+aa+bb+cโโ=Kโabcโbcaโcabโโ, then K=
Q3mediummcqMathematicsMathematics Mock Test - 12026
9% accuracy
The system of equations kx+y+z=1, x+ky+z=k, and x+y+kz=k2 has no solution if k equals:
Q4mediummcqMathematicsMathematics Mock Test - 102026
0% accuracy
If the system of linear equations x+2ay+az=0, x+3by+bz=0 and x+4cy+cz=0 has a non-zero solution, then:
Q5mediummcqMathematicsMathematics Mock Test - 102026
36% accuracy
If f(ฮฑ)=[cosฮฑโsinฮฑโsinฮฑcosฮฑโ] and if ฮฑ,ฮฒ and ฮณ are angles of a triangle, then x is a solution to xn=โฃf(ฮฑ)โ f(ฮฒ)โ f(ฮณ)โฃ where n=3. What are the values of x?
Q6mediummcqMathematicsMathematics Mock Test - 52026
0% accuracy
If a๎ =6, b,c satisfy โa34โ2bbaโ2ccbโโ=0 then abc=
Q7mediummcqMathematicsMathematics Mock Test - 52026
50% accuracy
The co-factor of the element '4' in the determinant โ1280โ3302โ5411โ1211โโ
Q8mediummcqMathematicsMathematics Mock Test - 22026
0% accuracy
If the area of a triangle with vertices (โ3,0),(3,0) and (0,k) is 9 square units, then what is the value of k?
Q9mediummcqMathematicsMathematics Mock Test - 92026
0% accuracy
If A=โ200โ020โ002โโ and B=โ100โ210โ332โโ, then โฃABโฃ is equal to:
Q10mediummcqMathematicsMathematics Mock Test - 92026
0% accuracy
If ฮฑ,ฮฒ are the roots of the equation 2x2+3x+5=0, then the value of the determinant โ0ฮฑฮฒโฮฒ0ฮฑโฮฒฮฑ0โโ is:
Q11mediummcqMathematicsMathematics Mock Test - 92026
0% accuracy
Let A=โ2b1โbb2+1bโ1b2โโ where b>0. Then the minimum value of bdet(A)โ is:
Q12mediummcqMathematicsMathematics Mock Test - 92026
0% accuracy
If x is a positive integer, then ฮ=โx!(x+1)!(x+2)!โ(x+1)!(x+2)!(x+3)!โ(x+2)!(x+3)!(x+4)!โโ is equal to:
Q13mediummcqMathematicsMathematics Mock Test - 42026
0% accuracy
Find the value of det(22A) for the following matrix: A=โ2โ1โ3โ301โ122โโ
Q14mediummcqMathematicsMathematics Mock Test - 82026
The values of x for which the given matrix โโx2xโxxโ2โ2โxโxโโ will be non-singular are:
Q15mediummcqMathematicsMathematics Mock Test - 82026
The minors of โ4 and 9 and the co-factors of โ4 and 9 in the determinant โโ1โ4โ7โโ2โ5โ8โ3โ69โโ are respectively:
Q16mediummcqMathematicsMathematics Mock Test - 82026
If f(x)=[x2ฮปโฮปxโ], then โฃf(ฮปx)โf(x)โฃ is equal to:
Q17mediummcqMathematicsMathematics Mock Test - 82026
If Dpโ=โpp2p3โ153525โ8910โโ, then D1โ+D2โ+D3โ+D4โ+D5โ=
Q18mediummcqMathematicsMathematics Mock Test - 32026
M is a square matrix of order n and โฃMโฃ=5. If all elements of M are multiplied by 2, the determinant becomes 40. The value of n is:
Q19mediummcqMathematicsMathematics Mock Test - 112026
If ฮ=โ0bโacโaโaโb0cโbโaโcbโc0โโ, then ฮ equals:
Q20mediummcqMathematicsMathematics Mock Test - 112026
The system of linear equationsx+y+z=4,x+2y+3z=7,x+4y+ฮปz=ฮผ has a unique solution if:
Mathematics Mock Test - 9 Determinants โ FAQ
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Our database has 20 Determinants questions from Mathematics Mock Test - 9 covering 2026 to 2026.
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The 20 Mathematics Mock Test - 9 Determinants questions include 0 easy, 20 medium and 0 hard level questions.
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