Devise a test to demonstrate the validity of the following trignometric formulas.
a) sin (A+B)-sin(A)cos(B)+cos(A)sin(B)
b) sin*2(2A)-2sin(A)cos(A)
Choose arbitrary values of angles A and B ( at least ten values), but test each quadrant and special angles (0,45,90). Hint:Convert angles in degrees into radians or declare degrees appropriately in excel format.) Trigonometric Functions Part a) Part b)

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k