If `A^2-A+I=0,` then the invers of `A` is `A^(-2)` b. `A+I` c. `I-A` d. `A-I`

If A^(2)-A+I=0, then the inverse of A is: (A) A+I (B) A(C)A-I (D) I-A

If A^(2)-A+ I =0 then the inverse of A is - (a) I-A (b) A-I (c) A (d) A+I

If A^(2)+A+I=0, then A is non-singular A!=0(b) A is singular A^(-1)=-(A+I)

Write the value of |a+i b c+i d-c+i d a-i b| .

what is the value of i^(-35)+i^7 ? (a) 1 (b) 3 (c) 0 (d) 2

If A^(3)=O, then I+A+A^(2) equals I-A b.(I+A^(1))=^(-1) c.(I-A)^(-1) d.none of these

If one root of x^(2)-(3+2i)x+(1+3i)=0 is 1+i then the other root is A) 1-i B) 2+i C) 3+i D) 1+3i

If A is a square matrix such that A^(2)=A, then (I+A)^(3)-7A is equal to (a) A (b) I-A(c)I(d)3A

If i^(2)=1, then the sum i+i^(2)+i^(3)+ upto 1000 terms is equal to 1 b.-1 c.i d.0

If A , B ,C are angles of a triangles, then the value of |[e^(2i A),e^(-i C),e^(-i B)],[e^(-i C),e^(2i B),e^(-i A)],[e^(-i B),e^(-i A),e^(2i C)]| is 1 b. -1 c. -2 d. -4