JEE Main 2026 Model Paper 1
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Question : 57 of 75
Marks:
+1,
-0
Let f : R ⟶ R be a twice differentiable function such that ( sin x cos y ) ( f ( 2 x + 2 y ) − f ( 2 x − 2 y ) ) = ( cos x sin y ) ( f ( 2 x + 2 y ) + f ( 2 x − 2 y ) ) , for all x , y ∈ R .
Iff ′ ( 0 ) =
, then the value of 24 f ′ ′ (
)
If
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