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[" 30.The range of the function "f(theta...

[" 30.The range of the function "f(theta)=(sin theta)/(theta)+(theta)/(tan theta),theta in(0,(pi)/(2))" is equal to : "],[[" (a) "(0,oo)," (b) "((1)/(pi),2)," (c) "(2,oo)," (d) "((2)/(pi),2)]]

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