Math, asked by dineshkonkumutti, 3 months ago

the period of cot x/4+tan x/4/1+tan x/2-tan x is​

Answers

Answered by alkasharma1465
1

Answer:

I wanted to answer but unable to do so.

Answered by Sankarshana
6

Answer:

4\pi

Step-by-step explanation:

Let's take a function  f(x) = \frac{h(x)}{g(x)}

If period of h(x) is a, and period of g(x)\\ is b, then period of f(x) is LCM(a,b)

Also, if f(x) = g(x) + h(x) and if period of  g(x)\\  is a and period of h(x) is b, then period of f(x) is again LCM(a,b)

Period of tan(kx) and cot(kx) is \frac{\pi }{|k|}

So here the function is

f(x) = \frac{cot(\frac{x}{4} )+tan(\frac{x}{4} )}{1+tan(\frac{x}{2} )-tan(x)}

h(x) = cot(\frac{x}{4} )+tan(\frac{x}{4} )}

g(x) = 1 + tan(\frac{x}{2} )-tan(x)

Lets calculate period for h(x) and  g(x)\\ now

Period of  h(x) = LCM ( 4\pi, 4\pi) = 4\pi

Period of  g(x)\\ = LCM ( 1, 2\pi, \pi) = 2\pi

Hence, period of f(x) is LCM ( 2\pi, 4\pi ) which is 4\pi

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