Which of the following statements has a truth | vedclass

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(D) Step $1$: Analyze option $(A)$. $\sin(-x) = -\sin(x)$, so $\sin(x)$ is an odd function. Truth value is '$F$'.Step $2$: Analyze option $(B)$. $A$ s

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The square of any real number is non-negative.

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(D) Step $1$: Analyze option $(A)$. $\sin(-x) = -\sin(x)$, so $\sin(x)$ is an odd function. Truth value is '$F$'.Step $2$: Analyze option $(B)$. $A$ square matrix is non-singular only if its determinant is non-zero. For example, the zero matrix is singular. Truth value is '$F$'.Step $3$: Analyze option $(C)$. Let $z = a + bi$. Then $z \cdot \bar{z} = (a + bi)(a - bi) = a^2 + b^2$, which is a real number. Truth value is '$F$'.Step $4$: Analyze option $(D)$. For any real number $x$, $x^2 \ge 0$. This is always true. Truth value is '$T$'.

Which of the following statements has a truth value of '$T$'?

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