Question
show that vector area of quadrilateral abcd ia half of its digonal vectors.
Ex 5.2 find the area of sector of a circle with radius 6cm if angle of the sector is 60
Find the direction cosine of the vector which is perpendicular to the vector with direction ratios -1,2,2 &0,2,1?
A truck covers a distance of 150km at certain average speed and then covers another 200 km at an average speed which is 20 km per hour more than the first speed. If a truck covers the total distance in 5 hour find the first speed of truck
One angstrom is the ten billionth part of a meter. Express this information in scientific notation
