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Cos plus tansin equals sec?
Start on the left-hand side. cos(x) + tan(x)sin(x) Put tan(x) in terms of sin(x) and cos(x). cos(x) + [sin(x)/cos(x)]sin(x) Multiply. cos(x) + sin2(x)/cos(x) Make the denominators equal....
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Sin x plus cos x?
sin(x) + cos(x) = sqrt(2) · sin(45°+x)
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What is cos?
One definition of "cos" is a type of lettuce.
cos in math means cosine.
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What is Cos Theta minus Cos Theta?
Zero. Anything minus itself is zero.
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Cos x plus sin x equals 0?
cosx + sinx = 0 when sinx = -cosx. By dividing both sides by cosx you get:sinx/cosx = -1tanx = -1The values where tanx = -1 are 3pi/4, 7pi/4, etc.Those are equivalent to 135 degrees, 315 degrees, etc.