A vector vec a is parallel to the line of intersection of planes P_1 containing vectors hat i, hat i+hat j and P_

### Question Asked by a Student from EXXAMM.com Team

Q 1307123088.     A vector vec a is parallel to the line of intersection of planes P_1 containing vectors hat i, hat i+hat j and P_2 conataining vectors hat i-hat j, hat i+ hat k. Then the angle between vec a and hat i-2 hat j+2 hat k is?
A

frac{pi}{3}

B

frac{pi}{6}

C

frac{pi}{4}

D

frac{pi}{2}`

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

#### Access free resources including

• 100% free video lectures with detailed notes and examples
• Previous Year Papers
• Mock Tests
• Practices question categorized in topics and 4 levels with detailed solutions
• Syllabus & Pattern Analysis