Multiple Choice Questions on If f x tan x then find the value of f x f x ........ for NDA Exam Preparation

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Multiple Choice Questions

If f x tan x then find the value of f x f x ........

Mathematics (NDA) Set theory
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    If f(x) = tan x, then find the value of f(x) + f(-x) ?

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    Incorrect Answer
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    Explanation:

    Given ,  f(x) = tan x  

     

     Then , f(-x) = tan(-x) 

    = - tan x  

    Therefore ,  f(x) + f(-x) = tan x – tan x  

    = 0 

    By: bhavesh kumar singh
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