if tano + seco=2/3 then
tano-seco=
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Answer:
(tano-seco) = -3/2
Step-by-step explanation:
tano + seco=2/3
we know the Identity:
(secA) ^2- (tanA) ^2= 1
(secA+tanA)(secA-tanA)= 1
(secA+tanA)(tanA- secA) )= - 1
2/3(tano-seco)= -1
(tano-seco) = -3/2
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