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14. The function defined by (sin(81) if x < 0, f(x) = { 2x la cos(5:) if x > 0. is continuous if and only if a is (a) 5, (b) 8, (c)4, (d) -1, (e) 0.
(8) A function is defined as follows Slx - 4 + ax 1x2 - 2ar +4 if r < 2 if > 2. Find the value of a such that f(n) is continuous at := a.
(3) A function is defined as follows 11 - 31+ ar - az +5 if r < -1 if r>-1. Find the value of a such that f(x) is continuous at r = a.