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Area of a circular sector, Continued) – Sharp EL-9900 User Manual

Page 133

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18

Advanced Keyboard/TRIGONOMETRY USING THE SHARP EL-9900

Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.

8. Continue the problem and find the area using the Graphic Solver.

9. Press 2ndF SOLVER A (METHOD)

3 (Graphic).

10. Reset A to 0 to start the problem from the beginning.

11. Place the cursor on the A variable and press 2ndF EXE .

12. Recall that BEGIN and END are the lower and upper values between which

you feel the solution will lie. Enter a 20 for END so that the intersection of

the two graphs is visible on the screen.

13. Press 2ndF EXE to find the area.

AREA OF A CIRCULAR SECTOR

(continued)