MCQ
The distance of point (1, 2, 3) from origin is
- A1
- B2
- C3
- D$\sqrt{14}$
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$f(x) = \sqrt {\left| {{{\sin }^{ - 1}}\left| {\sin x} \right|} \right| - {{\cos }^{ - 1}}\left| {\cos x} \right|} $ is
The solution of $\frac{\text{dy}}{\text{dx}}+\text{y}=\text{e}^{-\text{x}},$ y(0) = 0 is:
$\text{y}=\text{e}^{-\text{x}}(\text{x}-1)$
$\text{y}=\text{x}\text{e}^{\text{x}}$
$\text{y}=\text{x}\text{e}^{-\text{x}}+1$
$\text{y}=\text{x}\text{e}^{-\text{x}}$