Given Cos (theta)= 0.5, find Sin (theta) and tan (theta), correct to 2 decimal places.

1 answer

theta is 60º or 300º

Use your calculator if you want decimal answers.

We can actually get exact answers here.
make a triangle with angles 30-60-90
then the sides opposite these angles are 1,√3, and 2
sin 60º = √3/2 tan 60º = √3
sin 300 = -√3/2 tan 300 = -√3
Similar Questions
    1. answers icon 2 answers
  1. Multiple ChoiceWhich expression is NOT equivalent to 1? (theta) means 0 with dash in it. A.)sin^2 (theta)+cot^2 (theta) sin^2
    1. answers icon 0 answers
  2. Suppose that \Theta takes values in [0,1] and its PDF is of the formf_{\Theta }(\theta )= a\theta (1-\theta )^2,\ \ \
    1. answers icon 1 answer
  3. 1. Which expression is equivalent to cos 2theta for all values of theta ?cos^2 theta – sin^2 theta ~ cos^2 theta – 1 1 – 2
    1. answers icon 1 answer
more similar questions