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shearer216
Joined: 29 Jul 2007
Posts: 2
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 Posted: July 29, 2007 7:52 PM Post subject: Newbie Ques. |
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Can the Ti-89 accept a trig identity squared? For example I am trying to enter:
Sin^2(θ)-2sin(θ)+3=0
or
4cos^2(x)-1=0
It keeps telling me Im missing a ( but I cant fin out where.
I am trying to solve problems where identities are squared.
Thanks
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mellamokb
Joined: 10 May 2007
Posts: 124
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| Posted: July 30, 2007 1:45 PM Post subject: |
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Hi shearer216,
Welcome to TI-89 Forums!
To use squared trig functions, simply enter them in this form:
Although this isn't the accepted mathematical way to portray higher power trig functions, it means the same thing and is interpreted correctly on the TI-89 calculator.
Hope this helps!
~ mellamokb |
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shearer216
Joined: 29 Jul 2007
Posts: 2
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| Posted: August 1, 2007 2:24 AM Post subject: |
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| That got it. Thanks! Im new to the calculator world! |
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mellamokb
Joined: 10 May 2007
Posts: 124
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| Posted: August 1, 2007 8:26 AM Post subject: |
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No problem, shearer216. Glad to help!
~ mellamokb |
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