TRIGONOMETRIC FUNCTIONS Expressions (Page 4 of 8)

Next, evaluate the expression 10sin(20deg)/sin(115deg). This expression might result from a problem involving the Law of Sines. Because the numerator and denominator are single terms, no additional parentheses are necessary.

 CLEAR key.

 10 SIN key. 20 Right parenthesis key. Divide key. SIN key. 115 Right parenthesis key. ENTER key.

 Calculator screen image.
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