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Katherine Clarke
Mathematics
18 January, 01:53
Find sinФ if cosФ = √17/9
+2
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1
)
Mariela Porter
18 January, 02:10
0
8/9.
Step-by-step explanation:
We can use the following trig identity to do this:
cos^2 Ф + sin^2 Ф = 1
sin^2 Ф = 1 - cos^2 Ф
= 1 - (√17/9) ^2
= 1 - 17/81
= 81/81 / 17/81
= 64/81
So sin Ф = √ (64/81)
= 8/9 (answer).
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