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OpenStudy (chris215):
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Nnesha (nnesha):
sin^2 x + cos^2x + tan^2x sin^2x + cos ^2 x = 1 so 1+tan^2x which is equal to ?
OpenStudy (chris215):
sec^2 x ?
Nnesha (nnesha):
:-)
Nnesha (nnesha):
that's right!
OpenStudy (chris215):
thanks :)
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Nnesha (nnesha):
np :-)
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