Let a=-iˆ+jˆ+2kˆ, b=iˆ-jˆ-3kˆ, c=ab and d=ca. Then (a-b)⋅d is equal to :(1) 4(2) -4(3) -2(4) 2
Автор: Arms Academy Digital
Загружено: 2026-02-23
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Описание:
JEE MAIN 23 Jan 2026 (Morning Shift) Question Solution
Let a=-iˆ+jˆ+2kˆ, b=iˆ-jˆ-3kˆ, c=ab and d=ca. Then (a-b)⋅d is equal to :
(1) 4
(2) -4
(3) -2
(4) 2
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