Find the sum of: `18ab, 5ab and12ab`

Sum of 18ab, -5ab, 12ab is

The blood group of 50 donors, participated in blood donation camp are A, AB, B, A, O,AB, 0, 0, A, AB, B, A, O, AB, O, O, A, B, A, O, AB, O, O, A, AB, B, O, AB, O, B, A, O, AB, 0, 0, A, AB, B, A, O, AB, O, A, AB, B, A, O, AB, O, O, Find the mode of the above verbal data.

Find the maximum value of abs(bara-barb)^(2)+abs(barb-barc)^(2)+ abs(barc-bara)^(2) , subject to the condition that bara,barb,barc are unit vectors.

Find the sum of the like terms . 18ab,5ab,12ab

Now draw a triangle ABC and measure its sides. Find the sum of the sides AB + BC, BC + AC and AC + AB, compare it with the length of the third side. What do you observe? You will observe that AB + BC > AC, BC + AC > AB and AC + AB > BC.

A human male produces sperms with the genotypes AB, Ab, aB and ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this perons?

In the given figure, AB|\|CD|\|EF given that AB=7.5 cm, DC=y cm, EF=4.5 cm, BC=x cm. Find the values of x and y.

Find the perimeters of /_\ABE

If abs(bara)=1,abs(barb)=1,abs(barc)=2 and baraxx(baraxxbarc)+barb=bar0 then find the angle between bara and barc