Ask Question
9 September, 19:49

If tan (theta) = 3/4 and theta is an acute angle, find cos (theta)

+5
Answers (1)
  1. 9 September, 21:06
    0
    Sin t / cos t = 3 / 4

    4 sin t = 3 cos t

    sin t = 3 cos t / 4

    sin² t + cos² t = 1

    (3 cos t / 4) ² + cos² t = 1

    9 cos² t / 16 + cos² t = 1 / · 16

    9 cos² t + 16 cos² t = 16

    25 cos² t = 16

    cos ² t = 16/25

    Answer:

    cos t = 4 / 5
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “If tan (theta) = 3/4 and theta is an acute angle, find cos (theta) ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers