calculate the values of (i) j (2i - 3j+k) (ii) (2i - j ) (3i+ k) - Physics - Motion In A Plane

Question

calculate the values of (i) j (2i - 3j+k)
(ii) (2i - j ) (3i+ k)

Vikas · Accepted Answer

Answer  (i)    j
(2i-3j+k) we know   j
i =0  ,j j=1 and  j
k=0therfore  j (2i-3j+k) =j 2i -3 j
j +j
k=2×0-3×1+0    =-3  ans
similiarly (ii)  (2i-j)(3i+k) =6i
i + 2i k -3j i-k
j                  = 6+2×0-3×0=6 (2i-j)(3i+k) =6

calculate the values of (i) j.(2i - 3j+k) (ii) (2i - j ). (3i+ k)

calculate the values of (i) j.(2i - 3j+k)
(ii) (2i - j ). (3i+ k)