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December 20, 2014

December 20, 2014

Posted by **JAMES** on Friday, January 27, 2012 at 1:17pm.

sin(θ)=7/sqrt 149

cos=

tan=

cot=

csc=

sec=

- Trigonometry -
**Henry**, Sunday, January 29, 2012 at 10:57amsinA = 7/sqrt149 = Y/r.

X^2 + Y^2 = r^2,

X^2 + 7^2 = (sqrt149)^2,

X^2 +49 = 149,

X^2 = 100,

X = 10.

X = 10, Y = 7, r = sqrt149.

cosA = X/r = 10 / sqrt149.

tanA = Y/X = 7 / 10.

cotA = X/Y =

cscA =

secA =

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