Tutor profile: Brandon S.
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Brandon S.
Math Tutor
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Questions
Subject: Pre-Calculus
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Question:
Find sin(theta) if cos(theta) = 12/13 and theta is in quadrant 4
Inactive
Brandon S.
Answer:
sin^2(theta) = 1 - cos^^2(theta) = 1 - (12/13)^2 = 1 - 144/169 = 25/169 so, sin(theta) = -5/13 since theta is in quadrant 4
Subject: Calculus
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Question:
Find the derivative of 3x^3-4x+2
Inactive
Brandon S.
Answer:
9x^2-4
Subject: Algebra
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Question:
Find the domain of (x-4) divided by (x-2)(x+2) in interval notation.
Inactive
Brandon S.
Answer:
(-infinity, -2) U (-2,2) U (2,infinity)
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