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The range of function f(x) =tan(pi2/9-x2)

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2 Answers

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\(\therefore\) y ∈ [0,3].

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by (30 points)

For range of function f(x) = tan(pi/9-x2) :-

f(x) = tan(pi2/9-x2)

First find the range of values of x that can be used in this equation, so,

x = (-3,3)                                [Since , if the values of x will be greater or equal to 3, the                                                         value of pi2/9-x2 will become infinite]

Now,

Minimum value of f(x) = tan{pi2/9-(3)2}

                                    =tan{pi2/9-(9)}

                                    =tan(0)                                   

                                    =0

Maximum value of f(x) = tan{pi2/9-(0)2}

                                     = tan{pi2/9}

                                     = tan{pi/3}2

                                            = {tan(pi/3)}2

                                     = (root3)2

                                           = 3

Therefore, range of function f(x) = [0,3]

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