If a-2-3-4k-b-k- and c-4-2-3k- then -a-b-c-

We know that|a×(b×c)|=|(a·c)b (a·b)c| ⇒|(a·c)b (a·b)c|=|2(î+ĵ+k̂) (1)(4î+2ĵ+3k̂)| Where, (a·c)=2,(a·b)= 1 =| 2î k̂|=√(4+1)=√(5) ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Subtraction of a Vector

If a=2î+3ĵ-4k...

Question

If $\to a = 2^i + 3^j - 4^k, \to b =^i +^j +^k$ and $\to c = 4^i + 2^j + 3^k,$ then $∣ ∣ ∣ \to a \times (\to b \times \to c) ∣ ∣ ∣ =$

\sqrt{10}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\sqrt{5}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

Suggest Corrections

Similar questions

\to a = 2^i + 3^j - 4^k

\to b =^i +^j +^k

\to c = 4^j + 3^k

| (¯ ¯ ¯ a \times ¯ ¯ b) \times ¯ ¯ c |

Find $\to a . (\to b \times \to c)$ , if $\to a = 2^i +^j + 3^k, \to b = -^i + 2^j +^k$ and $\to c = 3^i +^j + 2^k$ .

\to r = 3^i + 2^j - 5^k, \to a = 2^i -^j +^k, \to b =^i + 3^j - 2^k

\to c = - 2^i +^j - 3^k

\to r = x \to a + y \to b + z \to c

a =^i +^j +^k

b = 4^i + 3^j + 4^k

c =^i + α^j + β^k

| c | = \sqrt{3}

a = -^i + 2^j + 3^k

b =^i - 2^j +^k

c = 4^i - 3^j - 2^k

a + λ b

λ

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program