What is tan θ for this θ = cos^-1(-3/5)?

Question 100

MediumOriginal question

Let $\theta = \cos^{-1}\left(-\frac{3}{5}\right)$ .

What is $\tan \theta$ for this $\theta = \cos^{-1}\left(-\frac{3}{5}\right)$ ?

- \frac{4}{3}

Correct answerYour answer

- \frac{3}{4}

Correct answerYour answer

\frac{3}{4}

Correct answerYour answer

\frac{4}{3}

Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

Worth noting

$\frac{4}{3}$ loses the sign: an obtuse angle has a negative tangent.

Ten questions from Inverse Trigonometric Functions, at your own pace.

Ten questions from Inverse Trigonometric Functions, at your own pace.