cmi-entrance 2015 Q1

cmi-entrance · India · pgmath 4 marks Not Maths
Which of the following topological spaces is/are connected?
(A) $\mathrm{GL}_{1}(\mathbb{R})$
(B) $\mathrm{GL}_{1}(\mathbb{C})$
(C) $\mathrm{GL}_{2}(\mathbb{R})$
(D) $\left\{\left[\begin{array}{cc}x & -y \\ y & x\end{array}\right] : x, y \in \mathbb{R}, x^{2}+y^{2}=1\right\}$
Which of the following topological spaces is/are connected?\\
(A) $\mathrm{GL}_{1}(\mathbb{R})$\\
(B) $\mathrm{GL}_{1}(\mathbb{C})$\\
(C) $\mathrm{GL}_{2}(\mathbb{R})$\\
(D) $\left\{\left[\begin{array}{cc}x & -y \\ y & x\end{array}\right] : x, y \in \mathbb{R}, x^{2}+y^{2}=1\right\}$