Question
If the sum of x , y , and z is 9, and the sum of their
squares is 18, then determine the value of the expression xy + yz + zx .Solution
(x + y + z)2Â = x2Â + y2Â + z2Â + 2(xy + yz + zx) So, 92Â = 18 + 2(xy + yz + zx) Or, 81 = 18 + 2(xy + yz + zx) So, 2(xy + yz + zx) = 81 - 18 = 63 So, (xy + yz + zx) = (63/2) = 31.5
How many types of cell signalings are there?
Which of the following is a plant-based source of protein?
Which statement about the Human Genome Project is incorrect?
- Which organ produces urea as a waste product?
Which type of connective tissue connects muscles to bones?
Achras sapota is the scientific name of:
Which type of muscular tissue is multinucleated?
Hemoglobin has the highest affinity with which gas?
In roots, the protoxylem lies towards the periphery and the metaxylem towards the center. This arrangement of primary xylem is called:
The shared terminal duct for the reproductive and urinary systems in males is: