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

wats the 60% off a prize that is $20.00

I just need the equation on how to do it. I'm so lost :'( help please!!!!!!

When MgCO3(s) is strongly heated, it produces solid MgO as gaseous CO2 is driven off.Does the oxidation number of carbon change upon the formation of CO2?

write an equation that is perpendicular to the line y = 2x + 13?

lara has a tin of peanuts cashews and pecans she will pick a second nut without looking. how many outcomes are there for her two picks?

write an equation that is perpendicular to the line y = 2x + 13?

Compute the odds in favor of rolling a sum of 10 in a single roll of two fair dice

The Habsburg Empire did all of the following EXCEPT A. take control of Hungary, Croatia, and Slovonia. B. lose their Holy Roman Empire in Germany. C. remain a c

which foods earthworms can digest?

find the amplitude, period, and phase shift of the function defined by: y=3-2cos(3x+pi)