The plane ` vec rdot vec n=q` will contain the line ` vec r= vec a+lambda vec b ,` if a. `b.n!=0,a.n!=q` b. `b.n=,a.n!=q` c. `b.n=0,a.n=q` d. `b.n!=0,a.n=q`

Line vec r= vec a+lambda vec b will not meet the plane vec rdot vec n=q , if a. vec bdot vec n=0, vec adot vec n=q b. vec bdot vec n!=0, vec adot vec n!=q c. vec bdot vec n=0, vec adot vec n!=q d. vec bdot vec n!=0, vec adot vec n=q

The equation of a line passing through the point vec a parallel to the plane vec rdot vec n=q and perpendicular to the line vec r= vec b+t vec c is a. vec r= vec a+lambda( vec nxx vec c) b. ( vec r- vec a)xx( vec nxx vec c) c. vec r= vec b+lambda( vec nxx vec c) d. none of these

If the angel between unit vectors vec aa n d vec b60^0 , then find the value of | vec a- vec b|dot

The vector equation of the plane passing through the origin and the line of intersection of the planes vec rdot vec a=lambdaa n d vec rdot vec b=mu is a. vec rdot(lambda vec a-mu vec b)=0 b. vec rdot(lambda vec b-mu vec a)=0 c. vec rdot(lambda vec a+mu vec b)=0 d. vec rdot(lambda vec b+mu vec a)=0

Find | vec a|a n d| vec b|,if( vec a+ vec b)dot( vec a- vec b) = 8 , | vec a|=8| vec b|dot

If vec a , a n d vec b are unit vectors , then find the greatest value of | vec a+ vec b|+| vec a- vec b|dot

Given that vec adot vec b= vec adot vec c , vec axx vec b= vec axx vec ca n d vec a is not a zero vector. Show that vec b= vec cdot

The intercept made by the plane vec rdot vec n=q on the x-axis is a. q/( hat idot vec n) b. ( hat idot vec n)/q c. ( hat idot vec n)/q d. q/(| vec n|)

Find the equation of a straight line in the plane vec r* vec n=d which is parallel to vec r= vec a+lambda vec b and passes through the foot of the perpendicular drawn from point P( vec a)to vec rdot vec n=d(w h e r e vec ndot vec b=0)dot a. vec r= vec a+((d- vec a*vec n)/(n^2))n+lambda vec b b. vec r= vec a+((d- vec a* vec n)/n)n+lambda vec b c. vec r= vec a+(( vec a* vec n-d)/(n^2))n+lambda vec b d. vec r= vec a+(( vec a* vec n-d)/n)n+lambda vec b

The projection of point P( vec p) on the plane vec rdot vec n=q is ( vec s) , then a. vec s=((q- vec pdot vec n) vec n)/(| vec n|^2) b. vec s=p+((q- vec pdot vec n) vec n)/(| vec n|^2) c. vec s=p-(( vec pdot vec n) vec n)/(| vec n|^2) d. vec s=p-((q- vec pdot vec n) vec n)/(| vec n|^2)