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If abs(veca)=3 abs(vecb)=4 and theta lie...

If `abs(veca)=3 abs(vecb)=4` and `theta` lies between `pi/3 le theta le pi/4` then find `abs((vecb-veca)xx(vecb+veca))^2+4(veca*vecb)^2`

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2022-Question
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