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Let veca=hati+hatj+hatk, vecb=-hati+hatj+hatk, vecc=hati-hatj+hatk and vecd=hati+hatj-hatk. Then, the line of intersection ofplanes one determined by veca, vecb and other determined by vecc, vecd is perpendicular to |
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Answer» `x`-axis `(VECA xx vecb)xx (vecc xx vecd)` `[veca vec C vecd]vecb-[vecb vecc vecd]vecd` `=4vecb-veca=-8hati` Which is perpendicular to y-axis and z-axis. |
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