The area of the parallelogram whose diagonals are the vectors \[2\mathbf{a}-\mathbf{b}\] and \[4\mathbf{a}-5\mathbf{b},\] where a and b are the unit vectors forming an angle of \[{{45}^{o}},\] is

The area of the parallelogram whose diagonals are the vectors \[2\math

1.	The area of the parallelogram whose diagonals are the vectors \[2\mathbf{a}-\mathbf{b}\] and \[4\mathbf{a}-5\mathbf{b},\] where a and b are the unit vectors forming an angle of \[{{45}^{o}},\] is
A.	\[3\sqrt{2}\]
B.	\[\frac{3}{\sqrt{2}}\]
C.	\[\sqrt{2}\]
D.	None of these
Answer» C. \[\sqrt{2}\]

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The area of the parallelogram whose diagonals are the vectors \[2\mathbf{a}-\mathbf{b}\] and \[4\mathbf{a}-5\mathbf{b},\] where a and b are the unit vectors forming an angle of \[{{45}^{o}},\] is

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