Trigonometry 2

FIND THE REFERENCE # FOR EACH VALUE OF T. : FIND THE REFERENCE # FOR EACH VALUE OF T. T= 5∏/6 T= 7∏/4 T= -2∏/3 T= 5.80

EVALUATING TRIG.FUNCTIONS : EVALUATING TRIG.FUNCTIONS Find each value: cos 2 ∏/3; tan(-∏/3);sin(19∏/4) Soln:

GRAPHS OF TRIG.FUNCTIONS : GRAPHS OF TRIG.FUNCTIONS THE GENERAL FORM: Y= ASIN(KX-Φ) +C A=AMPLITUDE K=WAVE # ± C ONLY SHIFTS GRAPH UP OR DOWN THE Y-AXIS. THE TERM (KX-Φ) THE PEROID:it ranges form 0-2∏ for sin and cos;0-∏ for tan functions.

GRAPH SIMS: : GRAPH SIMS: http://mathdemos.gcsu.edu/mathdemos/family_of_functions/trig_gallery.html

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TRIGONOMETRIC FUNCTIONS OF REAL NUMBERS. : TRIGONOMETRIC FUNCTIONS OF REAL NUMBERS. Let t be any real number and let P(x,y) be the terminal point on the unit circle determined by t. We define. Sin t=y ; Cos t=x ;Tan t= y/x

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