sin(45°+A).sin(45°-A) = 1/2(cos²A -sin²A) | Prove | Trigonometric Ratios of Compound Angles | Trigonometry | Sci-Pi

Prove that: 

sin(45°+A).sin(45°-A) =1/2(cos^2A-sin^2A)

Answer:

So, to solve this question you will need to understand the Trigonometric Ratios of Compound angle's formulas. See the formulas below and you will be able to solve the questions related to this!

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