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Question

Domain of the function f(x)=1x+2(sin1x+cos1x)+14x2 is

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Solution

f(x)=1x+2(sin1x+cos1x)+14x2
Since sin1x & cos1x is intrduced xϵ[1,1]
Also, 4x20 but x0
(2+x)(2x)0
(x+2)(x2)0
xϵ[2,2][0]
domain xϵ[1,0)(0,1]

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