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simplify the expression algebraically and use a graphing utility to confirm your answer graphically.

0 votes

sin((3π/2)+θ)

asked Jan 22, 2015 in TRIGONOMETRY by anonymous

1 Answer

0 votes

Step 1:

The trigonometric expression is .

Sum formula of sine function : .

Then

                               

From cofunction identities : .

                               

                                              ( Since  )

                               

Step 2:

Verification:

Graph :

image

From the graph :

.

Solution :

.

answered Jan 23, 2015 by joseph Apprentice
edited Jan 24, 2015 by bradely

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