Sine
Cosine
Tangent
Secant
Cosecant
Cotangent
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Sin(90)= 1.000 Cos(0) = 1.000 Tan(45) = 1.000 NB The angular values repeat every 360 degrees.
45 degrees
exactly 1
0=45 degrees?
cosine 45° = √2/2 (Square root of 2 over 2)