Question
Mathematics Question on Vectors
If aˉ⊥bˉ and (aˉ+bˉ)⊥(aˉ+mbˉ), then m is
A
1
B
∣b2∣∣a2∣
C
-1
D
∣b2∣−∣a2∣
Answer
∣b2∣−∣a2∣
Explanation
Solution
The correct option is (D) : ∣b2∣−∣a2∣.
If aˉ⊥bˉ and (aˉ+bˉ)⊥(aˉ+mbˉ), then m is
1
∣b2∣∣a2∣
-1
∣b2∣−∣a2∣
∣b2∣−∣a2∣
The correct option is (D) : ∣b2∣−∣a2∣.