sukhd503 sukhd503

02-07-2017
Mathematics

contestada

Cos 130 cos 40 + sin 130 sin 40

Respuesta :

Аноним Аноним

02-07-2017

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

cos(130-40) = cos(90) = 0

Answer Link

Otras preguntas

Conditioned (secondary) reinforcers are powerful tools for shaping behavior because they have become associated with primary reinforcers. Which of the following

Mathew had purchased 100 shares of Blue Corporation for $100 per share. Currently, the stocks of Blue Corporation are trading at $150. Which of the following is

can i plz have some help with this

A typical flying insect applies an average force equal to twice its weight during each downward stroke while hovering. Take the mass of the insect to be 7.0g ,

When consumers consider all types of household cleaners, they are considering the _____ of household cleaners. When consumers limit their choice of household cl

The process of straightening an unsaturated fatty acid to create a more solid fat that resists rancidity is called

ASAP AND BRAINLIEST Which example of a community is most accurate? A. an entire state B.oneself C.neighborhood D. one's family

Which term refers to a fast graceful sailing vessel of american design that cut travel time between the east coast and california?

What would be the effect from an increase in the price of natural resources? A) There would be a movement along the short-run aggregate supply curve. Eliminate

Hydrogen peroxide decomposes to water and oxygen according to the following reaction H 2 O 2(aq) → H 2 O + ½ O 2 (g) It’s rate of decomposition is measured by t