INVERSE TRIG FUNCTIONS Expressions (Page 8 of 8)

As a last example, evaluate sin[arctan(-sqrt(3))-arcsec(5/4)]. Again, we need to use the inverse of the reciprocal function at the reciprocal of the argument for the inverse secant, and be careful with the many parentheses!

 SIN key. 2nd inverse tangent key. Negation key. 2nd Square root key. 3 Right parenthesis key. Right parenthesis key. Minus key. 2nd inverse cosine key. Left parenthesis key.
 5 Divide key. 4 Right parenthesis key. x to the -1 key. Right parenthesis key. Right parenthesis key. ENTER key.		 Calculator screen image.
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