Question:
Trigonometric Equations : Solution and Area of Triangle
1. Find all the solutions of the equation 3sin20(degrees) = cos2x(degrees) in the range 0(degrees) is less then or equal to x(degrees) which is less than or equal to 180(degrees).
2. A triangle has sides A-C =3cm
A-B = 5 cm
B-C = 4 cm
Find the area of the triangle