[" Question 1से 2तक Believe in erasers "],[" 1."|[2,4],[-5,-1]|]

What will come in place of question mark (?) in the following questions ? 2(1)/(4) - 13(4)/(5) + 22(1)/(4) = ?

What will come in place of question mark (?) in the following questions ? 3(1)/(5) + 5(1)/(2)-3(2)/(3) = ? + 1(1)/(4) .

What should come in the place of question mark (?) in the following questions ? 1(1)/(4) +1 (5)/(9) xx 1(5)/(8) + 6(1)/(2) = ?

(b) answer the following questions: 1. if A=[[1,2,2],[2,1,2],[2,2,1]] , then show that A^2-4A-5I_3=0

Answer the following questions.If A=[[2,-3],[3,-2],[-1,4]],B=[[-3,4,1],[2,-1,-3]] verify (3A-5B^T)^T=3A^T-5B

Answer the following questions. If A=[[1,-1,0],[2,3,4],[0,1,2]] and B=[[2,2,-4],[-4,2,-4],[2,-1,5]] ,show that BA=6I

Answer the following questions.Find x,yif [0,-1,4]{2[[4,5],[3,6],[2,-1]]+3[[4,3],[1,4],[0,-1]]}=[x,y]

The ratio of the number of pens to the number of erasers is 5: 1. If there are 30 pens and erasers together, what is the number of erasers?

If A = [(2,2,1), (1,3,1), (1,2,2)] then A^-1+(A-5I) (AI)^2 = (i) 1/ 5 [[4,2, -1], [-1,3,1], [-1,2,4]] (ii) 1/5 [[4, -2, -1], [-1, 3, -1], [-1, -2,4]] (iii) 1/3 [[4,2, -1], [-1,3,1], [-1,2,4]] (iv) 1/3 [[4, -2, -1], [-1,3, -1], [-1, -2,4]]