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Simplify i^{4}?

Simplify i 4 ? We know that i = -1 1/2 Therefore i 2 =-1 As i 4 =i 2 xi 2 Then i 4 =-1x-1=1
HS
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Describe how ventilation of the lungs occurs.

Ventilation is the process of moving air in and out of the lungs. This is brought about by pressure changes in the thoracic cavity. During inspiration, the diaphragm contracts causing it to flatten and move ...
ES
Answered by Emily S. • Biology tutor
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‘So I conclude that space and time are things of the body and have little to do with our selves. My Country is Truth.’ (Emily Dickinson to Joseph Lyman) Discuss space, or time, or truth, in the poetry of Emily Dickinson. (2000 words)

For Emily Dickinson, despite being a subjective “thing of the body”, time is essential to the construction of her poetic worlds. The association of time and temporality with mortal life and transience allows...
JT
5029 Views

How do fish take in oxygen from the enviroment?

The route of respiration for aquatic animals is via the gills. Oxygen absorption takes place as water, drawn in through the mouth is pushed out through the gill slits so flow is unidirectional (unlike mammal...
SD
Answered by Sarah D. • Biology tutor
6075 Views

Analyse the usefulness of functionalism for understanding society.

Firstly, functionalism has been deemed useful for understanding society on the grounds that it successfully demonstrates that social institutions are connected to, and dependent on one another. Functionalist...
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Answered by Alfie D. • Sociology tutor
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