# Intro To Trig Function: Question Preview (ID: 20146)

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 True or False. The cosine function is negative in the fourth quadrant. a) True b) False c) d) True or False. The Sine function is positive in the second quadrant. a) True b) False c) d) Let t be an angle in standard position. The acute angle formed by the terminal side of t and the horizontal axis is called its _________. a) Complement b) Supplement c) Reference Angle d) Reciproca Angle The angles (pi/6) and (-11pi/6) are ___________ a) Equal b) Complementary c) Supplementary d) Coterminal The reciprocal of secant is ________________ a) Sine b) Cosine c) Tanagent d) Cosecant True or False. All trigonometric functions are periodic. a) True b) False c) d) The reciprocal of cosine is ____________ a) sine b) secant c) cosecant d) tangent The cofunction of sine is _____________ a) cosine b) cosecant c) secant d) cotangent If two angles have the same initial and terminal sides, the angels are said to be ________. a) Equal b) Supplementary c) Complementary d) Coterminal True or False. Because sin(-t) = - sint, it can be said that the sine of a negative angle is a negative number. a) True b) False c) d) In which quadrant will cos(-8pi/3) lie? a) Quadrant I b) Quadrant II c) Quadrant III d) Quadrant IV In which quadrant will cos(19pi/6) lie? a) Quadrant 1 b) Quadrant II c) Quadrant III d) Quadrant IV In which quadrant will sin(pi/4) lie? a) Quadrant I b) Quadant II c) Quadrant III d) Quadrant IV The tangent function is ________ in the third quadrant. a) Negative b) Positive c) Undefined d) The cosecant function is______________in the second quadrant a) Negative b) Positive c) Undefined d) tan(pi/2)=__________ a) 0 b) 1 c) -1 d) undefined
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