Y=(1+tana) (1-tanb) where a-b=pi by 4 then (y+1) to the power y+1 is equal to
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Step-by-step explanation:
use the formula of
tan (a-b)=
=(tana-tanb)÷(1+tana*tanb)
hope it will help for you
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the answer is in the above attachment
HOPE IT HELPS YOU
-REGARDS
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