If →PQ = -2i + 5j and →RQ = -i - 7j, find &rarr...
If →PQ = -2i + 5j and →RQ = -i - 7j, find →PR
-3i + 12j
-3i - 12j
-i + 12j
i - 12j
Correct answer is C
→PQ = →PR + →RQ
→PR = →PQ - →RQ
→PR = -2i + 5j - (-i - 7j)
→PR = -2i + 5j + i + 7j
→PR = -i + 12j.
Given that g ; x \(\to\) 3x and f ; x \(\to\) cos x. Find the value of g\(^o\) f(20\(^o\)) ...
Find the inverse of \(\begin{pmatrix} 3 & 5 \\ 1 & 2 \end{pmatrix}\)...
A particle is acted upon by two forces 6N and 3N inclined at an angle of 120° to each other. Fin...
A body is acted upon by two forces \(F_{1} = (5 N, 060°)\) and \(F_{2} = (10 N, 180°)\). Fin...
Solve: \(3^{2x-2} - 28(3^{x-2}) + 3 = 0\)...
Determine the coefficient of \(x^{2}\) in the expansion of \((a + 3x)^{6}\)...