Using the Product to Sum Formula Calculate Sin(45°)Cos(30°)
Use a trig identity:
Sin(u)Cos(v) =
Sin(u + v) + Sin(u - v)
2
In this case, u = 45 and v = 30
Sin(45)Cos(30) =
Sin(45 + 30) + Sin(45 - 30)
2
Sin(45)Cos(30) =
Sin(75) + Sin(15)
2
Sin(45)Cos(30) =
0.96592582590194 + 0.25881904481356
2
Sin(45)Cos(30) =
1.2247448707155
2
Sin(45)Cos(30) = 0.61237243535775
You have 2 free calculationss remaining
What is the Answer?
Sin(45)Cos(30) = 0.61237243535775
How does the Sum to Product and Product to Sum Formulas Calculator work?
Free Sum to Product and Product to Sum Formulas Calculator - Given two angles in degrees of u and v, this determines the following:
* Sin(u) ± Sin(v)
* Cos(u) ± Cos(v)
* Sin(u)Sin(v)
* Cos(u)Cos(v)
* Sin(u)Cos(v)
* Cos(u)Sin(v)
* Sin(u + v)
* Sin(u - v)
* Cos(u + v)
* Cos(u - v)
* Tan(u + v)
* Tan(u - v) This calculator has 1 input.
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