SOLUTION: Write the expression as either the sine, cosine, or tangent of a single angle.
sin ( pi/2 ) cos (pi/7) + cos ( pi/2) sin (pi/7)
Here is my work, can you please double check?
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Trigonometry-basics
-> SOLUTION: Write the expression as either the sine, cosine, or tangent of a single angle.
sin ( pi/2 ) cos (pi/7) + cos ( pi/2) sin (pi/7)
Here is my work, can you please double check?
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Question 979489: Write the expression as either the sine, cosine, or tangent of a single angle.
sin ( pi/2 ) cos (pi/7) + cos ( pi/2) sin (pi/7)
Here is my work, can you please double check?
sin ( a + b) = sin ( a ) cos (b) + cos (a) sin (b)
sin (pi/2 + pi/7)= sin ( pi/2 ) cos (pi/7) + cos ( pi/2) sin (pi/7)
sin ( 9 pi/14) Answer by josgarithmetic(39620) (Show Source):
(