Bhopal gas tragedy was caused bya. Ethyl isocyanate b. Methyl isocyanate c. Ammonia d. Hydrocyamides

Sure, here are some sample step-by-step solutions for a math problem using LaTeX: Problem: Simplify the following expression: $\frac{(x^2+y^2)(x^2-y^2)}{(x+y)(x-y)}$ Solution: \begin{aligned} \frac{(x^2+y^2)(x^2-y^2)}{(x+y)(x-y)} &= \frac{(x^2+y^2)(x+y)(x-y)}{(x+y)(x-y)} \tag{expand the numerator} \\ &= \frac{(x^2+y^2)\cancel{(x+y)}\cancel{(x-y)}}{\cancel{(x+y)}\cancel{(x-y)}} \tag{cancel out common factors} \\ &= x^2+y^2 \tag{simplify} \end{aligned} Problem: Find the slope and $y$-intercept of the line with equation $2x+3y=6$. Solution: To find the slope and $y$-intercept of the line, we need to rewrite the equation in slope-intercept form, $y=mx+b$, where $m$ is the slope and $b$ is the $y$-intercept. \begin{aligned} 2x+3y &= 6 \tag{given equation} \\ 3y &= -2x+6 \tag{subtract 2x from both sides} \\ y &= -\frac{2}{3}x+2 \tag{divide both sides by $3$ and simplify} \\ \end{aligned} Therefore, the slope of the line is $m=-\frac{2}{3}$ and the $y$-intercept is $b=2$.