please solve urgent

Asked by Patel | 6th Aug, 2021, 10:20: PM

Expert Answer:

Given: f(x) = tan x - tan 2x
f'(x) = sec2x - sec22x (2)
f'(x) = sec2x - 2 sec22x
Take f'(x) = 0
sec2x = 2 sec22x
Which is not possible.
Thus, f has no critical point

Answered by Renu Varma | 8th Aug, 2021, 04:18: PM

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