TRIGONOMETRIC EQUATIONS Solving Inequalities (Page 2 of 6)

Replace the inequality symbol with an equal sign to obtain sin[(2pi/365)(x-121)]+(1/2) = 0. Enter the left side of this equation as a function Y1.

 Y= key. CLEAR key.

 SIN key. Left parenthesis key. 2 2nd Pi key. Divide key. 365 Right parenthesis key. Left parenthesis key. X,T,theta,n key. Minus key.
 101 Right parenthesis key. Right parenthesis key. Plus key. 1 Divide key. 2

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