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# tm6_a - MAC 1114 Module Test 6 Name MULTIPLE CHOICE Choose...

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MAC 1114 Module Test 6 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Find the exact value by using a sum or difference identity. 1) tan π 12 A) - 2 - 3 B) 2 - 3 C) - 2 + 3 D) 2 + 3 Answer: B Objective: (5.4) Use Sum/Diff Identities to Find Sin/Tan Value Using a sum or difference identity, write the following as an expression involving functions of x. 2) tan x + π 6 A) 1 + 3 tan x 3 - tan x B) - tan x C) tan x - 3 1 + 3 tan x D) tan x Answer: A Objective: (5.4) Express as Function of x Find the exact value of the expression using the provided information. 3) Find sin(A - C) given that cos A = 1 3 , with A in quadrant I, and sin C = 1 4 , with C in quadrant II. A) - 12 30 - 1 2 B) - 2 30 - 1 12 C) - 12 2 - 1 30 D) - 30 2 - 1 12 Answer: B Objective: (5.4) Use Sum/Diff Identities for Sine and Tangent Use a sum or difference identity to find the exact value.

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