Question about Texas Instruments TI-84 Plus Calculator

Calculator won't graph right

I can't get it to graph a sin or cos graph right

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• Anonymous Mar 29, 2008

yes that was it, thanks

• Anonymous Apr 01, 2008

how do you correctly punchin sin 30. I can do it by hand and get 1/2 but the calculator gives me a way different answer when I punch in sin (30)

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• Master

Try seeing if the mode is in radians or degrees, it must be in radians

Let me know if this works

Posted on Mar 29, 2008

• Benjamin Patri Apr 16, 2008

change your mode from radians to degrees by clicking on the mode button and the third line down you can change the option you're probably getting a very small number around negative 1 with punching in sin 30

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Posted on Jan 02, 2017

Having gone over a month without a response to my query, I assume it was a matter of the angular mode setting

Posted on Oct 27, 2010

SOURCE: im trying to graph a

To enter powers of trigonometric functions you must enclose the functions in parentheses and then apply the exponent to the whole. For example X1t =(sin T)^3 , Y1t=(cos T)^3 will give you a shape similar to a rhombus with concave sides. The symbol ^syands for the operation of raising to a power. The key is the one with the caret symbol ^ , and it is wedged between the xsqure and EXIT keys (third row of keys).
As regards the cotangent, use the equivalent definition cot(X)=1/tan(X).

Posted on Jul 26, 2011

Testimonial: "thank you for your help sooo much u are a life saver and i was able to figure out how 2 graph the equations on my calculator"

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