Texas Instruments TI-30X - IIS Scientific Calculator Teachers Manual page 88

Cosine
Use this formula to find how far the
base of the ladder is from the
house. Round your answer to the
nearest whole number, and then
return to floating decimal mode.
D = 5 x COS 75
Press
5 V ?
75 E <
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© 1999 T I I
EXAS NSTRUMENTS NCORPORATED
Display
5*cos (75)
1.294095226
DEG
F 0 1 2 3 4 5 6 7 8 9
-
FIX DEG
5*cos (75)
1.
FIX DEG
5*cos (75)
1.294095226
DEG
TI-30X ÙS: A Guide For Teachers
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84