The area of a parallelogram whose diagonals are P → $$=$$ $$2i^+3j^$$ and Q→ $$=$$ $$i^$$ $$+4j^$$ is

Correct option is 42.5 square units

Questions

The area of a parallelogram whose diagonals are $\vec{P} = 2 \hat{i} + 3 \hat{j} and \vec{Q} = \hat{i} + 4 \hat{j} is$

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detailed solution

Correct option is D

Area = 12|P→ ×Q→ | = |12|i^j^k^230140|= |12[2×4−3×1]k^| =52

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The area of a parallelogram whose diagonals are P → = 2i^+3j^ and Q→ = i^ +4j^ is

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The area of a parallelogram whose diagonals are $\vec{P} = 2 \hat{i} + 3 \hat{j} and \vec{Q} = \hat{i} + 4 \hat{j} is$