If x= {\A} \cos 4 {\t}+ {\B} \sin 4 {\t}, then { {\d}^2 ...

CBSE Class 12 Math 2023 Delhi Set 1 Solved Paper

Question : 8 of 38

Marks: +1, -0

x= {\A} \cos 4 {\t}+ {\B} sin \;4 {\t}

, then

\;{ {\d}^2 x}/{ {\dt}^2}

is equal to

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