Let and be a vector such that
.
If , then is equal to :
.
If , then is equal to :
- (A)1627
- (B)1618✓ Correct
- (C)1600
- (D)1609
Answer: (B)
Solution
, so , i.e. (equivalent direction after simplification) for some scalar .
Using with :
So , and .
Using with :
So , and .
JEE Main · 2024 · 08 Apr 2024 · Shift 2 · Single correct option