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 ‌(sin‌x‌cos‌y)(f(2x+2y)−f(2x−2y)) ‌=(cos‌x‌sin‌y)(f(2x+2y)+f(2x−2y)), for all x,y∈R.
If f′(0)=‌
1
2
, then the value of 24f′′(‌
5Ï€
3
)

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