{"id":7176,"date":"2021-10-22T23:42:38","date_gmt":"2021-10-22T18:12:38","guid":{"rendered":"https:\/\/mathemerize.com\/?p=7176"},"modified":"2021-10-24T23:54:41","modified_gmt":"2021-10-24T18:24:41","slug":"find-the-domain-and-range-of-function-fx-x-2over-3-x","status":"publish","type":"post","link":"https:\/\/mathemerize.com\/find-the-domain-and-range-of-function-fx-x-2over-3-x\/","title":{"rendered":"Find the domain and range of function f(x) = \\(x-2\\over 3-x\\)."},"content":{"rendered":"
we have,\u00a0 f(x) = \\(x-2\\over 3-x\\)<\/p>\n
Domain of f : Clearly f(x) is defined for all x satisfying 3 – x \\(\\ne\\) 0 i.e. x \\(\\ne\\) 3<\/p>\n
Hence, Domain of f is R – {3}<\/p>\n
Range of f : Let y = f(x), i.e.\u00a0 y = \\(x-2\\over 3-x\\)<\/p>\n
\\(\\implies\\) 3y – xy = x – 2<\/p>\n
= x(y + 1) = 3y + 2<\/p>\n
\\(\\implies\\) x = \\(3y + 2\\over y + 1\\)<\/p>\n
Clearly, x assumes real values for all y expect y + 1 = 0 i.e. y = -1<\/p>\n
Hence, Range of f is R – {-1}<\/p>\n
If y = 2[x] + 3 & y = 3[x \u2013 2] + 5, then find [x + y] where [.] denotes greatest integer function.<\/a><\/p>\n Find the domain of the function f(x) = \\(1\\over x + 2\\).<\/a><\/p>\n Find the period of the function f(x) = \\(e^{x-[x]+|cos\\pi x|+|cos2\\pi x|+ \u2026.. + |cosn\\pi x|}\\)<\/a><\/p>\n Find the inverse of the function f(x) = \\(log_a(x + \\sqrt{(x^2+1)})\\); a > 1 and assuming it to be an onto function.<\/a><\/p>\n