alice37
alice37
27-06-2017
Mathematics
contestada
prove that sec^2x-cosec^2x=tan^2x-cot^2x
Respuesta :
BMKGKP
BMKGKP
27-06-2017
Use the identities sec^2(x) = tan^2(x) + 1
and
cosec^2(x) = 1 + cot^2 (x)
, both are derived from the pythagorean identity of
1 = sin^2 (x) + cos^2 (x)
by dividing through by either sin
2
or cos
2
.
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