The equation `r=lambda hati` represents

The equation vecr = lamda hati + mu hatj represents :

The equation vecr = lamda hati + mu hatj represents :

In the equation GPP-R=NPP, R represents:

In the equation GPP-R=NPP, R represents:

The projection of 2hati-3hatj+4hatk on the line whose equation is vecr=(3+lambda)hati+(3-2lambda)hatj+(5+6lambda)hatk , where lambda is a scalar parameter, is

The projection of 2hati-3hatj+4hatk on the line whose equation is vecr=(3+lambda)hati+(3-2lambda)hatj+(5+6lambda)hatk , where lambda is a scalar parameter, is

The differential equation representing the family of curves y = a sin (lambda x + alpha) is :

x^2/(1-lambda)+y^2/(1-lambda)+1=0 ,the equation represent an ellipse if

Find the shortest distance between the following lines whose vector equations are : vecr=(8+3lambda)hati-(9+16lambda)hatj+(10+7lambda)hatk and vecr=15hati+29hatj+5hatk+mu(3hati+8hatj-5hatk)