Taykeya Taykeya

09-10-2016
Mathematics

contestada

Sin205Cos85-Cos205Sin85

Respuesta :

Jimmy1999 Jimmy1999

09-10-2016

Remember that :

sin a . cos b - cos a. sin b = sin (a-b)

so :

sin 205. cos 85 - cos 205 . sin 85
= sin (205 - 85)
= sin 120
= sin ( 180-60)
= sin 60
= ½ √3

Hopefully helpfull... :)

Answer Link

Otras preguntas

17.) Evaluate a/b for a = 4/5 and b = - 9/2 a.) 18/5 b.) - 10/9 c.) - 18/5 d.) - 8/45

Choose the true statement about the historian’s practice. History is best determined through the lenses of politics and economics. .. Historians have a respo

Stone tools enabled our ancestors to butcher meat more quickly and efficiently, thereby providing higher quantities of protein for the developing brain and infl

A clothing company wants to entice consumers to pay more for their products. To do this, the company launches an advertising campaign to position themselves as

Which choice is the most efficient first step to solve this set of equations? y=3x-5 and 2x+6y=20

What Shakespeare play did Takaki use to characterize the relationship between the English and Native Americans?

Umm so I have this homework I'm working on and it's telling me to solve the equations but I'm not good at this type of stuff. It's solving two step equations

The ratio of the measures of the three angles in a triangle is 2:10:18. Find the measures of the largest angle.

Which stats function would you use to find the average value of a field?

in a fruit cocktail, for every 15 ml oforange juice you need 25 ml of applejuice and 10 ml of coconut milk. Whatproportion of the cocktail is coconutmilk?Give y