TRIGONOMETRY PROBLEM || How to find x from the given equation?

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[@annabanerjee5164]

Ok nice 👍 solution

[@jan-willemreens9010]

Where n is a member of Z ... very important to mention too ... thank you sir ...

[@DebdasBandyopadhyay-yq5jg]

Many thanks 🙏👍 for your comments.You are right.
Welcome sir

[@jan-willemreens9010]

Thank you sir, from now on I follow your instructive channel ... best regards, Jan-W

[@marcgriselhubert3915]

(First: x 0 mod Pi/2
We also notice that tan(Pi/8) = sqrt(2) - 1 and that cotan(Pi/8) = sqrt(2) +1)
We have (1/tan(x)) -tan(x) = 2 or (tan(x)^2 +2.tan(x) -1 = 0
Then tan(x) = sqrt(2) - 1 or tan(x) = -(sqrt(2) +1)
*If tan(x) = sqrt(2) - 1 = tan(Pi/8) then x = Pi/8 mod Pi
*If tan(x) = -(sqrt(2) - 1) = -cotan(Pi/8) = -tan(Pi/2 - Pi/8)
= tan(-3.Pi/8) then x = -3.Pi/8 mod Pi
*We can sum up: x = Pi/8 mod Pi/2
(as -3.Pi/8 = Pi/8 - Pi/2)

[@DebdasBandyopadhyay-yq5jg]

Thank you 👍 for your valuable information

[@DebdasBandyopadhyay-yq5jg]

It will be sinx instead of six.please do the needful.

[@Martin-hi7wx]

And degrees

[@DebdasBandyopadhyay-yq5jg]

To convert radiance to degrees multiply by 180/pi