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Mathematics
Trigonometry
Trigonometric Equations and Identities
(1+sec 2A) (1+sec4A) (1+sec8A) = tan8AcotA
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(1+sec 2A) (1+sec4A) (1+sec8A) = tan8AcotA
sec8A-1/sec4A-1=tan8A/tan2A
