What is the sine and cosine of 240

Question

Mathematics

Rey Rose

4 June, 18:50

What is the sine and cosine of 240

+1

Answers (2)

Know the Answer?

Branden · Answer 1

Sine:

0.94544515492

Cosine:

0.32578130553

Jaliyah Kennedy · Answer 2

Sin (240) = - √ (3) / 2

sin (240) = 2sin (120) cos (120)

sin (240) = 2[2sin (60) cos (60) cos (120) ]

sin (240) = 2[2[2sin (30) cos (30) cos (60) cos (120) ]]

sin (240) = 2[2[2[2sin (15) cos (15) cos (30) cos (60) cos (120) ]]]

sin (240) = 16sin (15) cos (15) cos (30) cos (60) cos (120)

cos (240) = ⁻¹/₂

cos (240) = cos¹⁶ (15) - sin¹⁶ (15)