(a) Given equation, $\sin{x + \sin{y + \sin{\mathcal{z} = - 3\ }}}$is satisfied only when $x = y = \mathcal{z =}\frac{3\pi}{2}$ for $x,\ y,\mathcal{z \in}\lbrack 0,\ 2\pi\rbrack$
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.