If a=3 and b=4, Then find value of
ab+ba
Answers
Answered by
0
Answer:
a+λb is perpendicular to a−λb
∴(a+λb).(a−λb)=0
∣a∣2−λ×(a.b)+λ×(b.a)−λ2×∣b∣2=0
⇒∣a∣2−λ2×∣b∣2=0
λ=±∣b∣∣a∣=±43
Answered by
3
Answer:
ab+ba
(3)(4)+(4)(3)
12 + 12
24
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