I enter the problems correctly, no doubt. Im asking because this online class is telling me I'm wrong. For example, 35Cot(61) gives me the answer 32.87, But my class tells me it's really 19.4. I AM in degree mode. I have no honest idea why this is happening.
My TI-84 calculator often gets the answer right, but when I put 9:5, it gives me the answer 5. But it actually equals 9/5. The calculator thinks I am putting 5. But I'm not. 5:10 gives me the answer 10, but the answer is actually 5/10. It also gets exponents wrong. When I do -2^2. It gives me the answer -4 even though Mrs. Millar told me it is positive 4, and it is positive 4, not -4.
Your right you should be in degree mode. However, my guess is you are somehow entering in cot wrong in your calc. Recall cot = 1/tan! In your graphing calculator enter: 35(1/tan(61) = 19.4.
Hope this helped!
Your right you should be in degree mode. However, my guess is you are somehow entering in cot wrong in your calc. Recall cot = 1/tan! In your graphing calculator enter: 35(1/tan(61) = 19.4. Hope this helped!
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SOURCE: radian mode does not work properly
-1E-13 is a very small number. When doing this kind of a problem you can regard 1E-13 as 0.
Remember that pi is an irrational number. It is only estimated on your calculator. I just played around with a TI-83 and found the following answers:
cos(pi/2) = 0
cos(2*pi + pi/2) = 0
cos(4*pi + pi/2) = 1E-13
cos(20*pi + pi/2) = -1E-13
As you know, that correct answer to each of these is 0. The calculator gives non-zero answers because some very small errors are accumulating. There is nothing wrong with your calculator.
SOURCE: wrong trig ratio
Your calculator is set in radians. Press mode key. Arrow down to 3rd line. Highlight degree and press enter. Your calculator is now in degrees, not radians. To get out of the mode screen and back to home screen, press 2nd and then mode.
SOURCE: i can't differentiate a function and I'm quite
Hello,
Clearly the x variable stores value zero. Press [F6] ( 1:clear a-z) [ENTER] and restart your derivative.
Hope it helps.
SOURCE: how do I get my
The following screen captures pertain to TI Nspire OS 2.1
Turn calculator ON. It calculator is not in HOME screen press the HOME button.
Press digit key 5:Settings and status. Select 2:Settings, then 1:General
On sdecond line Angle open the drop down window and select Degree.
Use TAB a few times to move cursor to the OK button. and press ENTER.
SOURCE: my TI-nspire isn't graphing correctly.
Hi, According to your problem, first check the battery status or
replace the battery. It may occur for battery. You need a software and firmware
update for this calculator. Reinstallation of software and an update of
firmware will solve your problem.
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