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cos x = 0, sin x = 1, solved using trigonometric identities. 3(pi) means 3/2 times round a the circle, therefore using graphs answer is pi/2, 3(pi/2), 5(pi/2)

In genetics, sometimes it is not easy to tell if an organism is heterozygous (having two different alleles of a gene) for a certain trait or if it is a homozygous (having the same identical alleles of ...

To factorise z³+1 into a linear and quadratic factor, it is best to try the factor theorem first. We set the equation to zero: z³+1=0.We need to find a value of z such that the above...

Transmitting Along Neurones

When a nerve cell is not stimulated, it is in a resting state. During this state, the inside of the axon is relatively more negative th...

Towards the later half of the Cold War, Cuba played an increasingly larger role in the development of international tensions. It not only served as the backdrop for various events, such as the Cuban re...