MULTIPLE CHOICE QUESTIONS- CLASS XI
[math]Complexnumberformof3-\sqrt{-7}[/math]
[math]3-i\sqrt{7}[/math]
[math]3+i\sqrt{7}[/math]
[math]3-i7[/math]
[math]3+i7[/math]
The complex conjucate of 2+i[math]\sqrt{7}[/math] is
(b) -2-[math]\sqrt{7}[/math]
(a) -2+i[math]\sqrt{7}[/math]
(d) 2+i[math]\sqrt{7}[/math]
(c) 2-i[math]\sqrt{7}[/math]
(1) The Order of the matrix [1 2 5 7] is
(2) 4 x 1
(3) 2 x 1
(4) 1 x 1
(1) 1 x 4
(2) Number of elements in a matrix or order 2 x 3 is
(2) 2
(4) 6
(1) 5
(3) 3
(3) if A = [br][br]
[table][tr][td][/td][/tr][/table][table][tr][td][/td][/tr][/table]
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