CBSE Mathematics Guess Paper2 Class XII 2011

http://www.cbseguess.com/-------------------------------------------------------------------------------------------------------www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com | www.dulife.com | www.magicsense.com Guess Paper – 2011 Class – XII Subject – Mathematics TEST-1 (MATRICES & DETERMINANTS Time: 1 hour Max. Marks: 23 (1 Mark Question) 1. Find the value of a, b, c and d from the equation.21523013abacabcd 2. Construct a 33 matrix whose elements are 32ijija 3. Find X and Y 232340XY and 223215XY 4. If A, B are symmetric matrices of the same order then()ABBA is a symmetric or skew symmetric matrix. 5. Find the value of x if 2334525xx 6. Evaluate: 3443ii 7. Find the area of the triangle with vertices (2,3),(3,2),(1,8) (4 Mark Question) 8. If 0tan2tan02A and is the identity matrix of order 2,show that cossin()sincosIAIA 9. If 111111111A , With P.M.I Prove that 111111111333333,333nnnnnnnnnnAnN 10. Prove that 2222223222()()2()()yzxxyzxyxyzxyzzzxy http://www.cbseguess.com/-------------------------------------------------------------------------------------------------------www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com | www.dulife.com | www.magicsense.com 11. Prove that222222322122212(1)221ababbababaabbaab or Prove that 222()()()()xxyzyyzxxyyzzxxyyzzxzzxy Coaching-37, C.O.D. Colony Shahganj Agra., Residence-83 Saket Colony Shahganj Agra. Paper Sumitted By: Name:shivankar gupta Email:shivankar_1978@yahoo.co.in Phone No.09410407427