If the operation is defined by a b = a2 + b2 for all real numbers a and b, then (2 3) 4 is equal to
120
185
175
129
If a, b, c are non-zero and different from 1, then the value of is
0
1
A.
0
Since, above determinant is a skew - symmetric of odd order, so the determinant should be zero.
If and the angle between a and b is , then the area of the triangle formed by these two vectors as two sides is
15