Question

1-tan2 4s/1+tan2 4s.......SolVe? Iz any1 who will give me the ryt answer of ds qstn​

Answer 1

Step-by-step explanation:

$\frac{1 - tan²(4s)}{1 + tan²(4s)}$

$We \: know-$

$\small\sf\boxed{\frac{1-tan²O}{1+tan²O}=Cos2O}$

$then,$

$Cos2(4s)$

$Cos(8s)$