Q. Find all angles, 0∘≤θ<360∘, that satisfy the equation below, to the nearest tenth of a degree.4tan2θ+3tanθ−1=3tanθAnswer: θ=
Simplify Equation: Simplify the given equation by subtracting 3tan(θ) from both sides.4tan2(θ)+3tan(θ)−1=3tan(θ)4tan2(θ)+3tan(θ)−3tan(θ)−1=04tan2(θ)−1=0
Solve Quadratic Equation: Solve the simplified quadratic equation for tan(θ).4tan2(θ)−1=0(2tan(θ)−1)(2tan(θ)+1)=0
Set and Solve Factors: Set each factor equal to zero and solve for tan(θ).2tan(θ)−1=0 or 2tan(θ)+1=0tan(θ)=21 or tan(θ)=−21
Find Corresponding Angles: Find the angles θ that correspond to tan(θ)=21 and tan(θ)=−21 within the range 0^\circ \leq \theta < 360^\circ. For tan(θ)=21, the angles are approximately 26.6∘ and 206.6∘. For tan(θ)=−21, the angles are approximately 333.4∘ and 153.4∘.
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