CBSE Class 11-science Answered
find the angle between the vectors Ä= i^ -2j^ + 3k^ and b vector = -i^ + 2j^ + 3k^
Asked by kapilkulhari | 24 Sep, 2019, 09:02: AM
Expert Answer
If angle between vectors a and b is θ , then we have
a = i - 2j + 3k , |a| = ( 1+4+9)1/2 = (14)1/2
b = -i +2j +3k , |b| = ( 1+4+9)1/2 = (14)1/2
a.b = -1 -4 +9 = 4
hence cosθ = 4/13 , θ = cos-1(4/14) = 73°
Answered by Thiyagarajan K | 24 Sep, 2019, 10:13: AM
CBSE 11-science - Physics
Asked by sheikhsaadat24 | 17 Apr, 2024, 09:41: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by sy123946 | 07 Apr, 2024, 04:23: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by derhebha955 | 03 Apr, 2024, 09:03: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by sumedhasingh238 | 29 Mar, 2024, 05:15: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by sumedhasingh238 | 28 Mar, 2024, 11:10: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by roshnibudhrani88 | 23 Mar, 2024, 05:52: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by emad.amd | 21 Mar, 2024, 12:00: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by vinitdubey7735 | 14 Mar, 2024, 11:21: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by om636694 | 04 Mar, 2024, 09:10: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by rajuinwati12 | 04 Mar, 2024, 09:22: AM
ANSWERED BY EXPERT