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Let veca=3hati+hatj-hatk and vecc= 2hat...

Let `veca=3hati+hatj-hatk ` and `vecc= 2hati-3hatj+3hatk` . If `vecb` is a vector such that `vec a=vectimes vecc` and `absvecb^2=50` then `abs(72-abs(vecb+vecc)^2)` is equal to _____.

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2023-Question
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