Asked Apr 18, 2019

Write the product as a sum or difference with positive arguments 

sin(4a) sin(7a)

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sin(4a) sin(7a)


Expert Answer

Step 1

To calculate the sum or difference with positive argument for the provided trigonometric expression sin(4α)sin(7α). Now, use the formula of product of the trigonometric function and simplify it further.

Step 2

The product formula of trigonometric function is shown below,

Step 3

Now, consider the provided trigonometric expression sin(4α)sin(7α) and apply ...


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