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

Need help with the 09A-2

What is the name for the study of cultural adaptations to environments?

The main product of the photosynthesis reaction is A. sugar. B. fat. C. protein. D. DNA.

The plant structure that helps transport water and nutrients from the roots to the leaves and other parts of the plant is A. stamen B. xylem C. pistil D. phloem

the cube in the image has a volume of 1,000 feet. The other solid has the same base and height as the cube, but the length of each of its slanted sides is 2 uni

I have to use the distributive property to rewrite each algebraic ezxpression i need answers please?1?1 3 (× + 1) =____?, 5(× + 8) =____?, 4 (× + 6) =___?

hey can you please help me posted picture of question

i need a repetition sentence for softball

A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 9 large boxes and 7 small boxes has a total weight of 279 kilograms. A

1) Which statement is TRUE? A) Energy can be created or destroyed. B) Electrical energy is created from other forms of energy. C) Energy in a battery make