Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

if vector a =  4 i + 5j – k , vector b = i – 4j + 5 k  and vector c = 3i + j – k, find a vector d  which is perpendicular to both vector a and vector b for which a vector . d vector = 21         i j and k and k are unit vector  
Asked by haroonrashidgkp | 01 Nov, 2018, 07:26: PM
answered-by-expert Expert Answer
begin mathsize 16px style top enclose straight a equals 4 straight i with hat on top plus 5 straight j with hat on top minus straight k with hat on top straight b with bar on top equals straight i with hat on top minus 4 straight j with hat on top plus 5 straight k with hat on top straight d with bar on top equals top enclose straight a cross times straight b with bar on top straight d with bar on top equals open vertical bar table row cell straight i with hat on top end cell cell straight j with hat on top end cell cell straight k with hat on top end cell row 4 5 cell negative 1 end cell row 1 cell negative 4 end cell 5 end table close vertical bar equals 21 straight i with hat on top plus 21 straight j with hat on top minus 21 straight k with hat on top Directions space of space vector space straight d with bar on top space are space straight i with hat on top plus straight j with hat on top minus straight k with hat on top According space to space the space quetsion comma straight lambda straight d with bar on top times top enclose straight a equals 21 Solving space this space we space get space the space value space of space straight lambda space and space then space find space straight d with bar on top. end style
Answered by Sneha shidid | 02 Nov, 2018, 05:03: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Maths
Example 17 Solve the following system of equations by matrix method. 3x-2y+3z =8 2x+y-z=1 4x-3y+2z = 4
Asked by mahammadsharifdakhani67 | 16 Apr, 2024, 07:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
Please Answer this case study..!!.
question image
Asked by 20muskaansharma23 | 08 Apr, 2024, 11:31: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
question 13
question image
Asked by klmn445 | 03 Apr, 2024, 11:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
300000/1368
Asked by cherrycharishma512 | 01 Apr, 2024, 12:32: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
The probability that a pen manufactured by a company will be defective is 0.1. If 12 such pens are selected find the probability that i) exactly 2 will be detective ii) at least 2.will be defective iii)none will he defective
Asked by annapoornaa429 | 31 Mar, 2024, 08:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
limit x tends to zero tanx-sinx/x^3
Asked by shirishakuruva477 | 28 Mar, 2024, 09:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
what is a hyperbola
Asked by sheensvlog | 27 Mar, 2024, 10:15: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
evaluate integration of log(sinx) dx
Asked by jprathamesh023 | 23 Mar, 2024, 04:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
construct of 2 × 3 matrix a=[aij] whose elements are aij=ij
Asked by antra1799 | 18 Mar, 2024, 07:49: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Maths
bag 1 contains 8 red and 2 black balls. bag 2 contains 7 red and 5 Black balls. one of the bags is chosen at random and a ball is drawn from it, which is found to be black. find the probability that the ball is drawn from bag 1.
Asked by janusingh736 | 13 Mar, 2024, 04:19: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×