Y = Cos X Find the Formula for Dy

question 107

Multiple Choice

y = cos x. Find the formula for dy.

• A) dy = -sin (x + dx)
• B) dy = -sin (x + dx) - sin x dx
• C) dy = -sin x dx
• D) dy = -sin (x + dx) + sin x dx
• E) dy = -sin (x + dx) - sin dx

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Definitions:

White Armies

Anti-Bolshevik forces during the Russian Civil War (1917-1923), composed mostly of monarchists, nationalists, and other anti-communist factions.

Russian Civil War

The conflict from 1917 to 1922 after the Russian Revolution, between the Red Army (Bolsheviks) and the White Army (anti-Bolsheviks), leading to the establishment of the Soviet Union.

Allied Nations

Refers to countries aligned with each other, typically through formal agreements, for mutual benefit or to achieve common objectives, especially during wartime.

Communist Party

A political party that advocates for the principles of communism, aiming for a classless society and the ownership of the means of production by the community as a whole.