A-Math -Trigonometry - Solving Trigonometric Equations

A-Math -Trigonometry - Solving Trigonometric Equations

Topic: Trigonometry

Change the entire equation to sine, cosine or tangent. In the example
 above, the equation was change to cosine. Form a quadratic equation
 and solve for x. You also have to bear in mind that in trigonometry,
sine x and cosine x CANNOT be greater then 1. Google  sine or
cosine graph and take a look at the max and min value of the y-axis,
you will see that it between 1 and -1 inclusive.  

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About Unknown

I created this Blog after my students told me that there is very little information about how to solve GCE O Level Math and Additional Math (A-Math) questions on the internet. Even if they manage to find, the solution were for very basic questions. I am a Full-time Math Tutor in Singapore. I tutor mainly in Northern Singapore (Woodlands, Chua Chu Kang, Bukit Panjang, Yishun and Sembawang). I also tutor in Johor Bahru.