What is the perpendicular distance of a point (2, 3) from the line 2x - 4y + 3 = 0?
Given that \(\theta\) is an acute angle and sin \(\theta\) = \(\frac{m}{n}\), find cos \(\theta\)
Evaluate \(\lim \limits_{x \to 2} \frac{(x - 2)(x^2 + 3x - 2)}{x^2 - 4}\)
If y = x sin x, Find \(\frac{d^2 y}{d^2 x}\)
