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Let \veca=2\hati+3\hatj+4\hatk, \vecb=\hati-2\hatj-2\hatk and \vecc=-\hati+4\hatj+3\hatk. If \vecd is a vector perpendicular to both \vecb and \vecc, and \veca*\vecd=18, then \lvert \veca* \vecd\rvert^2 is equal to: | Watch the step-by-step video solution for this NIMCET PYQ.