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Mathematics
Santiago Friedman
16 April, 08:25
How do you solve
sin9x/1-cos^2 (9x)
+2
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1
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Mike Knight
16 April, 12:15
0
Using formula sin^2 x + cos^2 x = 1 you get 1 - cos^2 (9x) = sin^2 (9x)
so in this way this fraction will be rewrited
sin9x / (1-cos^2 (9x) = sin9x / sin^2 (9x) = 1/sin9x
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