New ! Maths MCQ Practise Tests



11th Standard English Medium Maths Subject Matrices and Determinants Creative 5 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Maths

Time : 01:00:00 Hrs
Total Marks : 25

    5 Marks

    5 x 5 = 25
  1. If A is a square matrix such that A= I, then find the simplified value of (A-I)3+(A+I)3-7A.

  2. Without expanding evaluate the determinant\(\left| \begin{matrix} sin\alpha & cos\alpha & sin(\alpha +\delta ) \\ sin\beta & cos\beta & sin(\beta +\delta ) \\ sin\gamma & cos\gamma & sin(\gamma +\delta ) \end{matrix} \right| \)

  3. Find the equation of the line joining A(1,3) and B(0,0) using determinants and find k if D(k,0) is a point such that area of \(\triangle\)ABC is 3 sq. units.

  4. If \(A=\left[ \begin{matrix} 2 & 3 \\ 4 & 5 \end{matrix} \right] \) find A2 - 7A - 21.

  5. If \(A=\left[ \begin{matrix} 1 & 2 & 2 \\ 2 & 1 & 2 \\ 2 & 2 & 1 \end{matrix} \right] \), Show that k so that A2 -4A- 51 = 0

*****************************************

Reviews & Comments about 11th Standard English Medium Maths Subject Matrices and Determinants Creative 5 Mark Questions with Solution Part - I updated Creative Questions

Write your Comment