How rectangle is similar.how it corresponding sides equal.
Question
Cos inverse k andar cos alpha plus cos beta upon 1 plus cos alpha cos beta is equal to 2 tan inverse k andar tan alpha upon 2 into tan beta upon 2
show that a line can be found perpendicular to the three lines with direction cosines proportional to (2,1,5),(4,-2,2),(-6,4,-1). hence , show that if these three lines be concurrent, they are also coplanar
Maths
Sept. 22, 2018, 11:31 a.m.
Answer
if 10 man 15 women or 20 childern can do a piece of work in 30 days how long a man a woman and a child take to do the same work
If AD perpendicular BC, prove that AB square CD square= BD square AC square
If x-2y+k is equal to zero is a median of a triangle whose vertices are (-1, 3),(0,4) and (-5,2) find value of k
Minus 2 Y + K is equal to zero is a median of a triangle whose vertices and are -1, 30, 4 and minus 5 2 find the value of k