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Let vec =6hati+9hatj+12hatk,vecb=ahat+11...

Let `vec =6hati+9hatj+12hatk,vecb=ahat+11vecj-2veck-2hatk ` and `vecc` be vectors such that `veca times vecc =veca times vecb` If `veca. vecc =-12,vecc .(hati-2hatj+hat k)=5` then `vecc. (hati+hatj+hatk)` is equal to_____.

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2023-Question
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