Solved by AI teacher · Mathematics

Solve tan 2θ = tan (2/θ).

Concept: General solution of tan x = tan y

Question

Solve tan 2θ = tan (2/θ).

Try it yourself first

Hint: Socho, tan⁡x=tan⁡y\tan x = \tan y ka general solution kya hota hai?

Step-by-step solution

  1. 1

    Given equation

    Humein equation di gayi hai: tan⁡2θ=tan⁡(2θ)\tan 2\theta = \tan \left(\frac{2}{\theta}\right).
    tan⁡2θ=tan⁡(2θ)\tan 2\theta = \tan \left(\frac{2}{\theta}\right)
  2. 2

    General solution of tan

    General solution for tan⁡x=tan⁡y\tan x = \tan y is x=nπ+yx = n\pi + y, where n∈Zn \in \mathbb{Z}.
    x=nπ+yx = n\pi + y
  3. 3

    Apply general solution

    Is principle ko apply karte hain given equation par.
    2θ=nπ+2θ2\theta = n\pi + \frac{2}{\theta}
  4. 4

    Rearrange into quadratic

    Equation ko rearrange karke quadratic form mein likhte hain.
    2θ2−nπθ−2=02\theta^2 - n\pi\theta - 2 = 0
  5. 5

    Solve quadratic for $\theta$

    Quadratic formula use karke θ\theta ke liye solve karte hain.
    θ=−b±b2−4ac2a\theta = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
  6. 6

    Substitute and simplify

    Values substitute karke simplify karte hain.
    θ=nπ±(nπ)2−4(2)(−2)2(2)=nπ±n2π2+164\theta = \frac{n\pi \pm \sqrt{(n\pi)^2 - 4(2)(-2)}}{2(2)} = \frac{n\pi \pm \sqrt{n^2\pi^2 + 16}}{4}
  7. 7

    Final solutions for $\theta$

    The solutions are θ=nπ±n2π2+164\theta = \frac{n\pi \pm \sqrt{n^2\pi^2 + 16}}{4} for n∈Zn \in \mathbb{Z}.
    θ=nπ±n2π2+164\theta = \frac{n\pi \pm \sqrt{n^2\pi^2 + 16}}{4}

Final answer

The solutions are θ=±nπ+2\theta = \pm \sqrt{n\pi + 2} for n≥0n \ge 0 and θ=±2−nπ\theta = \pm \sqrt{2 - n\pi} for n≥1n \ge 1.

Remember: General solution of $\tan x = \tan y$ is $x = n\pi + y$.

Was this solution helpful?

Learn the whole topic: General solution of tan x = tan yA short lesson with a table, a flowchart, a labelled diagram and practice questionsTeach me →

Quick check · test yourself

Agar tan⁡3θ=tan⁡θ\tan 3\theta = \tan \theta ho, toh θ\theta ki general value kya hogi?

Ask the AI teacher about this question

Stuck on a step? Ask in your own words — English or Hinglish both work.

Sign in free to ask

More Mathematics questions