Question about Texas Instruments TI-30XA Calculator

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Hi,

If the default angle unit is not degree, you must set it to degree by pressing the [DRG] key. Once this is done you type

170 [SIN] [ * ]20 [ENTER]

If it feels awkward to enter the command this way you must insert parentheses to make sure calculator is evaluating the sine of 170 , not the sine of 20*170**20 [*] [( ] 170 [SIN] [)] [ENTER]**

Notice that the parentheses enclose 170 [SIN]. The sine of 170 will be computed first, then the result is multiplied by 20.

Hope it helps.

Thank you for rating this solution.

Posted on Dec 11, 2009

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Posted on Jan 02, 2017

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The sum is the result of adding two or more things together. The things don't have to be numbers, they can be vectors, matrices, polynomials, or other things.

For the other part of your question, the sum of 838 and 2 is 840.

For the other part of your question, the sum of 838 and 2 is 840.

Jan 19, 2014 | Computers & Internet

Just add the three vectors together. The first vector is 0.0i + 4.0j . The second vector is about 1.4i - 1.4j . The third is about -0.7i - 0.7j .

Adding the three vectors together gives about 0.7i + 1.9j .The exact answer is sqrt(0.5)i + (4.0-3sqrt(0.5))j .

Adding the three vectors together gives about 0.7i + 1.9j .The exact answer is sqrt(0.5)i + (4.0-3sqrt(0.5))j .

Mar 15, 2013 | Camping, Backpacking & Hiking

There is not much you can do with the information you provide. One has to assume the application point to be (0,0) and the angle the vector makes with the positive X-axis is 60 degrees

The X-Component is X_A=10*cos(60 deg)

The Y-component is Y_A=10*sin(60 deg)

To calculate the values of the X, and Y components you must make sure the angle unit is degree.

To get X_a type in 10 [COS] 60 [ENTER]

The X-Component is X_A=10*cos(60 deg)

The Y-component is Y_A=10*sin(60 deg)

To calculate the values of the X, and Y components you must make sure the angle unit is degree.

- Press [MODE]
- Move cursor to the line that says RADIAN DEGREE
- Highlight DEGREE and press [ENTER].
- Press [2nd][QUIT] to exit the configuration screen.

To get X_a type in 10 [COS] 60 [ENTER]

Oct 08, 2010 | Texas Instruments TI-84 Plus Calculator

If you're dealing with complex numbers, simply switch the view to polar coordinates. The length of the vector is the magnitude of the number. SHIFT MODE down-arrow 3 allows you to select between polar and rectangular coordinates.

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A(the longer vector=15units) will have the components on x and y axis. (x=15, y=0)

B(the shortest vector=10units) will have the components(x=5,y=5/sqrt(3))

R = A+B (the sum vector) will have the components (x=20, y=5*sqrt(3)), thus the length of R is 5*sqrt(19) and the angle with respect to A is 23.41deg or arctan(5*sqrt(3)/20) rad. = arctan(sqrt(3)/4)~0.40rad.

B(the shortest vector=10units) will have the components(x=5,y=5/sqrt(3))

R = A+B (the sum vector) will have the components (x=20, y=5*sqrt(3)), thus the length of R is 5*sqrt(19) and the angle with respect to A is 23.41deg or arctan(5*sqrt(3)/20) rad. = arctan(sqrt(3)/4)~0.40rad.

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Resultant of addition of two vectors A and B is calculated as the square root of (square of A + square of B + 2AB cosx) where x is the angle between the two vectors.

If the angle between the vectors increases, we need to keep in mind the behaviour of cos for different values of x. The resultant be maximum for x=0 and continue to decrease till x=180 but will again increase to a max value for x=360; the same as for x=0.

If the angle between the vectors increases, we need to keep in mind the behaviour of cos for different values of x. The resultant be maximum for x=0 and continue to decrease till x=180 but will again increase to a max value for x=360; the same as for x=0.

Feb 03, 2009 | Computers & Internet

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