1√29(2i+5j)
1√29(−2i+5j)
129(2i−5j)
129(−2i−5j)
Correct answer is B
The unit vector, ˆn is given by ˆn=→r|→r|
= (−2i+5j)√(−2)2+52=(−2i+5j)√29
= 1√29(−2i+5j)
Given that P = (-4, -5) and Q = (2,3), express →PQ in the form (k,θ). where k is the magn...
Find the distance between the points (2, 5) and (5, 9). ...
A body is acted upon by two forces F_{1} = (5 N, 060°) and F_{2} = (10 N, 180°). Fin...
Find the minimum value of y = 3x^{2} - x - 6....
Given that r = 2i - j, s = 3i + 5j and t = 6i - 2j, find the magnitude of 2r + s - t...
Simplify \frac{x^{3n + 1}}{x^{2n + \frac{5}{2}}(x^{2n - 3})^{\frac{1}{2}}}...
The line y = mx - 3 is a tangent to the curve y = 1 - 3x + 2x^{3} at (1, 0). Find the value ...