If f(x) is defined on domain [0, 1], then f(2 sin x) is defined on
\(\bigcup\limits_{n∈I}\){[2nπ,2nπ+π/6]\(\bigcup\)[2nπ+\(\frac{5π}{6}\),(2n+1)π]}
\(\bigcup\limits_{n∈I}\)[2nπ,2nπ+\(\fracπ6\)]
\(\bigcup\limits_{n∈I}\)[2nπ+\(\frac{5π}{6}\),(2n+1)π]
None of these

Let \(M = \{1, 2, 3, ....., 16\}\), if a relation R defined on set M such that R = \((x, y) : 4y = 5x – 3, x, y (\in) M\). How many elements should be added to R to make it symmetric.



