Sin[x]^2
=
1/2 (1 - Cos[2 x])
------------------------
Cos[x]^2
1/2 (1 + Cos[2 x])
=
1/2 (1 - Cos[2 x])
------------------------
Cos[x]^2
1/2 (1 + Cos[2 x])
-
1
(sin(x))^2 + (cos(x))^2 = 1
(i'm taking and as plus, like when people say what is one and one, they mean one plus one)
(sin(x))^2 + (cos(x))^2 = 1
(i'm taking and as plus, like when people say what is one and one, they mean one plus one)
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sin and cos are on your calculator x is the angle and the up arrow and 2 is to the power of 2
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it is mostly used in algebra 2 to figure out what sine,cosine,or tangent is.
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it is just sin^2x and cos^x