let `vecf(t)=[t]hati-(t-[t])hatj+[t+1]hatk` be a vector .where `[.]` is a greatest integer function .if `vecf(5/4)` and `hati+lambdahatj+muhatk` are parallel vectors then `(lambda,mu)`

Let f(t)=[t]bari+{t-[t]}barj+[t+1]bark where [.] denotes the greatest integer function. If the vectors bar(f((5)/(4))) and bari+lambdabarj+mubark are parallel then (lambda, mu)=

Let vecf(t)=[t] hat i+(t-[t]) hat j+[t+1] hat k , w h e r e[dot] denotes the greatest integer function. Then the vectors vecf(5/4)a n df(t),0lttlt1 are(a) parallel to each other(b) perpendicular(c) inclined at cos^(-1)2 (sqrt(7(1-t^2))) (d)inclined at cos^(-1)((8+t)/(9sqrt (1+t^2))) ;

Let vecf(t)=[t] hat i+(t-[t]) hat j+[t+1] hat k , w h e r e[dot] denotes the greatest integer function. Then the vectors vecf(5/4)a n df(t),0lttlt1 are(a) parallel to each other(b) perpendicular(c) inclined at cos^(-1)2 (sqrt(7(1-t^2))) (d)inclined at cos^(-1)((8+t)/(9sqrt (1+t^2))) ;

Let vecf(t)=[t] hat i+(t-[t]) hat j+[t+1] hat k , w h e r e[dot] denotes the greatest integer function. Then the vectors vecf(5/4)a n df(t),0lttlti are(a) parallel to each other(b) perpendicular(c) inclined at cos^(-1)2 (sqrt(7(1-t^2))) (d)inclined at cos^(-1)((8+t)/sqrt (1+t^2));

Let vecf(t)=[t] hat i+(t-[t]) hat j+[t+1] hat k , w h e r e[dot] denotes the greatest integer function. Then the vectors vecf(5/4)a n df(t),0lttlti are(a) parallel to each other(b) perpendicular(c) inclined at cos^(-1)2 (sqrt(7(1-t^2))) (d)inclined at cos^(-1)((8+t)/sqrt (1+t^2)) ;

Let vecf(t)=[t] hat i+(t-[t]) hat j+[t+1] hat k , w h e r e[dot] denotes the greatest integer function. Then the vectors vecf(5/4) and vecf(t) , 0 < t < 1 are (a) parallel to each other (b) perpendicular to each other (c) inclined at cos^(-1)(2/(sqrt(7(1-t^2)))) (d) inclined at cos^(-1)((8+t)/(9*sqrt(1+t^2)))

If 2hati-3hatj+4hatk and 3hati+lambdahatj+muhatk be collinear vectors, them find the values of lambda and mu .

If the vectors 3hati+lambdahatj+hatk and 2hati-hatj+8hatk are perpendicular, then lambda is equal to

If the vectors 3hati+lambdahatj+hatk and 2hati-hatj+8hatk are perpendicular, then lambda is equal to