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

How should the estimator handle any errors or omissions that may be found in the contract documents?

find TQIll give brainliest

Okagaki and sternberg (1991) found that white parents valued ________ as measures of intelligence.

Need a little help on this one

Including culture as a subject variable in a study helps improve the ____ validity of the study.

What two processes cause locations at high latitudes to receive less intense solar radiation compared to locations at lower latitudes?

What methods are you going to use to help you remember the definitions of the combining forms, prefixes, and suffixes?

The nurse is caring for an alert 2-month-old child and assesses a sunken fontanelle. which action would be most appropriate for the nurse to take based on the a

There are 2 buildings, A & B. A has twice as many visitors as B. 2,950 visitors from B went to A. Now, A has 39,500 more visitors than B. How many visitors

How did this division of the colonists affect the war effort and society?