0 votes 0 votes For the parallelogram OPQR shown in the sketch, $\overrightarrow{OP}=a \hat{i}+b \hat{j}$ and $\overrightarrow{OR}=c \hat{i} +d \hat{j}$. The area of the parallelogram is $ad-bc$ $ac+bd$ $ad+bc$ $ab-cd$ Calculus gate2012-ce calculus vector-identities + – Milicevic3306 asked Mar 25, 2018 recategorized Mar 10, 2021 by Lakshman Bhaiya Milicevic3306 11.9k points answer See all 0 reply