Questions
If the vectors are mutually perpendicular and if are also mutually perpendicular, then the cosine of the angle between is
detailed solution
Correct option is A
(3a→−5b→)⋅(2a→+b→)=0 or 6|a→|2−5|b→|2=7a→⋅b→ Also, (a→+4b→)⋅(b→−a→)=0or −|a→|2+4|b→|2=3a→⋅b→or 67|a→|2−57|b→|2=−13|a→|2+43|b→|2or 25|a→|2=43|b→|2⇒3a→⋅b→=−|a→|2+4|b→|2=5725|b→|2or 3|a→||b→|cosθ=5725|b→|2or 34325|b→|2cosθ=5725|b→|2or cosθ=19543Similar Questions
The vector equation of the plane through the point and to the line of intersection of the plane and is
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests