Q. Express as a function of a DIFFERENT angle, 0∘≤θ<360∘.tan(174∘)tan(□∘)
Understand Problem: Understand the problem and the range for θ. We need to express tan(174∘) in terms of a different angle that is within the specified range of 0∘ to 360∘. Since 174∘ is already within this range, we need to find an equivalent angle that has the same tangent value but is not 174∘ itself.
Find Reference Angle: Find the reference angle for 174°. The reference angle is the acute angle formed by the terminal side of the given angle and the x-axis. Since 174° is in the second quadrant, its reference angle is 180°−174°=6°.
Determine Equivalent Angle: Determine the equivalent angle with the same tangent value.The tangent function is positive in the first and third quadrants and negative in the second and fourth quadrants. Since 174∘ is in the second quadrant and we want a different angle, we can use the angle in the fourth quadrant that has the same reference angle, which is 360∘−6∘=354∘.
Express in terms of tan: Express tan(174°) in terms of tan(354°).Since tan(θ)=tan(θ+180°) for all θ, and 174° and 354° differ by 180°, we have tan(174°)=tan(354°).
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