Question

Write the expression as the sine or cosine of an angle. Sin pi/3 cos pi/7 - sin pi/7 cos pi/3

Answer 1

The expression can be written as : sin(π/3 - π/7)

what are trigonometric functions?

Trigonometric functions are functions that gives the relationship between the sides and angles of a triangle.  

some of the trigonometric functions are sine, cosine, tangent.

Analysis:

Let A = π/3

     B = π/7

If sin(A-B) = sinAcosB - cosAsinB

then sinπ/3cosπ/7 - sinπ/7cosπ/3 = sin(π/3 - π/7)

Learn more about Trigonometry : brainly.com/question/24349828

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