Raphael Chen's answer to Tara's Secondary 4 A Maths Singapore question.
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The question is asking you to PROVE that the left hand side (LHS) of this equation is equal to the right hand side (RHS) of this equation.
To solve, use trigonometric identities to help you solve the question.
Use this very same method of trigonometric identities, to solve for 7c & 7d.
To solve, use trigonometric identities to help you solve the question.
Use this very same method of trigonometric identities, to solve for 7c & 7d.
Date Posted:
4 years ago
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