which of the following is`//`are true for `Delta= |{:(a^(2),,1,,a+c),(0,,b^(2)+1,,b+c),(0,,b+c,,c^(2)+1):}|` ?A. `Delta ge 0` for real values of a,b,cB. `Delta le 0` for real values of a,b,cC. `Delta =|{:(bc-1,,0,,0),(1,,ac,,-a),(-b,,-a,,ab):}|`D. `Delta =0` if bc =1 where a,b,c are non-zero

which of the following is`//`are true for `Delta= |{:(a^(2),,1,,a+c),(

1.	which of the following is`//`are true for `Delta= \|{:(a^(2),,1,,a+c),(0,,b^(2)+1,,b+c),(0,,b+c,,c^(2)+1):}\|` ?A. `Delta ge 0` for real values of a,b,cB. `Delta le 0` for real values of a,b,cC. `Delta =\|{:(bc-1,,0,,0),(1,,ac,,-a),(-b,,-a,,ab):}\|`D. `Delta =0` if bc =1 where a,b,c are non-zero
Answer» Correct Answer - A::C::D `\|{:(a^(2),,1,,a+c),(0,,b^(2)+1,,b+c),(0,,b+c,,c^(1)+1):}\|=\|{:(a,,0,,1),(0,,b,,1),(0,,1,,c):}\|\|{:(a,,0,,1),(0,,b,,1),(0,,1,,c):}\|` `=\|{:(a,,0,,1),(0,,b,,1),(0,,1,,c):}\|^(2)` `=(abc -a)^(2)= a^(2) (bc-1)^(2)` `=\|{:(bc-1,,0,,0),(1,,ac,,-a),(-b,,-a,,ab):}\|` {Determinant formed by cofactors)