PRINCIPAL SOLUTIONS OF TRIGONOMETRIC EQUATIONS

Problem 1 :

Find the principal solutions (in radians) of the equation :

4sin²θ – 3 = 0

Solution :

Problem 2 :

Find the principal solutions (in radians) of the equation :

sin 2θ = cos θ

Solution :

Problem 3 :

Find the principal solutions (in degrees) of the equation :

2sin² x – 3sin x + 1 = 0

Solution :

Problem 4 :

Find the principal solutions (in degrees) of the equation :

3sec² x – 2tan² x - 4 = 0

Solution :

Problem 5 :

Find the principal solutions (in radians) of the equation :

sin θ + 1 = cos θ

Solution :

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