annatoncheva11 annatoncheva11

04-05-2020
Mathematics

contestada

Can anyone help me on this task sin75°.cos75°=

Respuesta :

Chelboy Chelboy

04-05-2020

Answer:0.25

Step-by-step explanation:

Sin75.cos75

From trigonometric identity we know that: sin2x=2sinxcosx

sinxcosx=(sin2x) ➗ 2

Sin75cos75=(sin(2x75)) ➗ 2

Sin75cos75=(sin150) ➗ 2 but sin150=0.5

Sin75cos75=0.5 ➗ 2

sin75cos75=0.25

Answer Link

lucasella lucasella

04-05-2020

The answer is attached.

Ver imagen lucasella

Answer Link

Otras preguntas

is 5/8 greater than less than or equal to 1/2?

Use of Dettol a) To prevent infection b) To clean wound

what is the theme of the soul of the great bell

HELPPPPPPPPPPPPPPP!!!!!!!!!

Rationalize the denominator of 3 root 5 + root 3/root 5 - root 3

How are the private and public keys generated in the RSA algorithm?

radicales alquilo 2-etil-5-metil-6-propil-8-isopropil-2-octano

Find x in each figure (assume the segment across the triangle is parallel to the third side)

Airplanes use radar (radio waves) to measure distances. The plane is at a height of 5200 m. The airport is 10.2 km away. How far does the plane need to travel b

what is the total of 4(n+7) ?