Question

Question #c299d

Answer 1

`sin 2t = 24/25`

Explanation:

`cos t = 4/5`
`sin^2 t = 1 - cos^2 t = 1 - 16/25 = 9/25`
`sin t = +- 3/5`
Since t is in Quadrant 1, sin t is positive
`sin 2t = 2sin t.cos t = 2(3/5)(4/5) = 24/25`