NEET Physics Mathematical Tools Questions Solved


If 3i^+2j^+8k^ and 2i^+xj^+k^ are at right angle then x=

(A)  7

(B)  -7

(C)  5

(D)  -4

Concept Videos :-

#25 | Vectors: Multiplication with Scalar
#26 | Vectors: Multiplication with Vector : Dot Product

Concept Questions :-

Scalar Product
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