Casio Fx82tl Manual
Here you can view all the pages of manual Casio Fx82tl Manual. The Casio manuals for Calculator are available online for free. You can easily download all the documents as PDF.
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36 Mastering the Calculator using the Casio fx-82TL Example 1 Solve equation Taking logs of both sides; To find the value of a, the keystrokes are: The display should read 4.3219281. So, . Confirm this by using the key. Example 2 Given , find the value of y The key is above the log key. Hence the keystrokes are: The display should read 38.370725 Example 3 (harder) Given , find the value of x To f i n d l o g x, the calculator keystrokes are: The display should read 0.5187675. 2a20= log 2 log 20...
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Mastering the Calculator using the Casio fx-82TL 37 Since this is the value of log x, you still need to find x where Without removing the answer of 0.5187675 on your display, press: Your display should now read 3.3019272 Note: You could use the ‘ln’ key instead of the ‘log’ key – the answer would still be the same. Try it! 14. Degrees, minutes, seconds The key involved is This key can be used for problems involving degrees, minutes and seconds or hours, minutes and seconds. 0.518767510 x=
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38 Mastering the Calculator using the Casio fx-82TL Example 1 Suppose that you have a trigonometric problem where the angle involved is given in degrees and minutes. e.g. Find x where ’ The keystrokes involved are: The display should show 1.728343, so x is approximately 1.73 Example 2 If you wish to convert an angle in degrees to its equivalent in degrees, minutes and seconds: e.g. 34.88°, the keystrokes are: The display should read 34°52°48 Example 3 To find the sum of 5 hours 52 minutes 30 seconds...
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Mastering the Calculator using the Casio fx-82TL 39 Review calculator exercises 1. Perform the following calculations (i) (5 + 4) × 3 (ii) 12.5 – 8 ÷ 0.5 (iii) (iv) (v) (vi) (vii) (viii) (ix) (x) (xi) 2. The following data is on growth (in $m) in an economy over a 8 year period: 2.5 6.2 -2.1 0.04 8.2 7.4 2.1 -1.7 Calculate (i) Σx(ii) Σx2(iii) (Σx)2 Explain in words what each of these mean. 368–× 4--------------------- 12.8 1 6.5 3.8–------------------------ 70.4117+× 47+ ()2...
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40 Mastering the Calculator using the Casio fx-82TL Calculator solutions 1. (i) (5 + 4) × 3= 27 Make sure your calculation is in comp mode. (ii) 12.5 – 8 ÷ 0.5 = -3.5 (iii)= 2.5 Either (3 × 6 – 8) ÷ 4 =, or 3 × 6 – 8 = ÷ 4 = (iv)= 1.007874 Either 12.8 ÷ (16.5 – 3.8) =, or 16.5 – 3.8 = x-1 × 12.8 = (v)= 0.9 Either ... ÷ ((4 + 7) × 2) = or ... ÷ (4 + 7) ÷ 2 = (vi)= 3.2 Either 2.4 ÷ (3 ÷ 4) =, or 2.4 ÷ 3 ab/c 4 = (vii)= 9.296.. Either 145.6 – 17.2x2 ÷ 5 = √ =, or √ (145.6 – 17.2x2 ÷ 5) = (viii)= 1.41.....
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Mastering the Calculator using the Casio fx-82TL 41 (xi)= 6.1111 Calculator keys: (100 – 90) x2 ÷ 90 + (50 – 60) x2 ÷ 60 + (20 – 30) x2 ÷ 30 = 2. The following data is on growth (in $m) in an economy over a 8 year period: 2.5 6.2 -2.1 0.04 8.2 7.4 2.1 -1.7 Calculate (i) Σx(ii) Σx2(iii) (Σx)2 Explain in words what each of these mean. To do this on the calculator, you must be in SD mode. Enter the data: mode 2 2.5 M+ 6.2 M+ 2.1 (–) M+ .04 M+ 8.2 M+ 7.4 M+ 2.1 M+ 1.7 (–) M+ (i) 22.64 Press...