sin cos tan

2006-12-26 4:03 am
Find the values of @
(Given the answers in fractions)

1. cos@=6/10

2. cos@=1.8/8


Find the values of tan @
(Leave the answer in surd form if necessary)

1. tan@=3/7

Find the values(Leave the answer in surd form )

1. sin @=2/4

回答 (2)

2006-12-26 4:41 am
✔ 最佳答案
cos@
1. cos@ = 6/10
cos@ = 3/5
@ = 53.13 (2d.p)
@ = 5313/100' ,,

2. cos@ = 1.8/8
cos@ = 9/40
@ = 76.997
@ = 77.00 (2d.p)
@ = 77/100' ,,

tan@
1. tan@ = 3/7
@ = 23.19 (2d.p)
@ = 116/5' ,,

sin@
1. sin@ = 2/4
sin@ = 1/2
@ = 30' ,,
2006-12-26 4:44 am
1. cos@=6/10
@ = 53.13o

2. cos@=1.8/8
@ = 77.00o
1. tan@=3/7
23.20o
1. sin @=2/4
@ = 30o


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