[Video Solution] Let \overrightarrowOA=2\vec a,\ \overrightarrowOB=6\vec a+5\vec b,\ \overrigh... | ASPIRE STUDY

Let \overrightarrowOA=2\vec a,\ \overrightarrowOB=6\vec a+5\vec b,\ \overrightarrowOC=3\vec b, where O is the origin. If the area of the parallelogram with adjacent sides \overrightarrowOA and \overrightarrowOC is 15 sq. units, then the area (in sq. units) of the quadrilateral OABC is equal to: | Watch the step-by-step video solution for this NIMCET PYQ.