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A student takes the tangent of both sides of… · Answer | StemPy Lab

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A student takes the tangent of both sides of tan⁻¹x + tan⁻¹5x = π/4 and gets 5x² + 6x - 1 = 0, which has two real roots. How many of those roots satisfy the original equation?

MathematicsMediumHigh School (11–12)Trigonometry › Inverse Trigonometric Functions Board Exam CUET UG

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A student takes the tangent of both sides of $\tan^{-1}x + \tan^{-1}5x = \dfrac{\pi}{4}$ and gets $5x^2 + 6x - 1 = 0$ , which has two real roots. How many of those roots satisfy the original equation?

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← A model needs the number x with sin⁻¹x + 2 cos⁻¹x = 2π/3. Which value of x does the equation give?The expression sin⁻¹x + sin⁻¹(x - 1) is used in a formula. For which set of real numbers x is it defined? →

More onTrigonometry › Inverse Trigonometric Functions

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