Question

Given below are two statements:
Statement I: The angle between the vectors $2\hat{i}+3\hat{j}+\hat{k}$ and $2\hat{i}-\hat{j}-\hat{k}$ is $\pi/2$
Statement II: The vector $\hat{a}\times(\hat{b}\times \hat{c})$ is coplanar with $\hat{a}$ and $\hat{b}$
In the light of the above statements, choose the correct answer from the options given below:

• A. Both Statement I and Statement II are true
• B. Both Statement I and Statement II are false
• C. Statement I is true but Statement II is false
• D. Statement I is false but Statement II is true

Answer 1

Answer: (C)

Statement I is true but Statement II is false

Answer 2

The correct answer is(C): Statement I is true but Statement II is false