Problem

Find all solutions of the equation in the interval $[0,2 \pi)$. \[ \sec \theta-1=0 \]

Solution

Step 1 :Rewrite the given equation \(\sec \theta-1=0\) as \(\frac{1}{\cos \theta} - 1 = 0\)

Step 2 :Solve the equation for \(\cos \theta\) to get \(\cos \theta = 1\)

Step 3 :The solutions to this equation in the interval [0, 2π) are \(\theta = 0\) and \(\theta = 2\pi\)

Step 4 :However, since the interval includes 0 but excludes 2π, the only solution in this interval is \(\theta = 0\)

Step 5 :Final Answer: The solution to the equation \(\sec \theta-1=0\) in the interval [0,2 \pi) is \(\boxed{0}\)

From Solvely APP
Source: https://solvelyapp.com/problems/19832/

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