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Find a solution to sec^(2)(x)+2tan(x) = 0

This question is a quadratic equation in hiding. The first step to solving this would be to expand sec^(2)(x) into 1 + tan^(2)(x) as they are equivalent. This can be derived by dividing sin^(2)(x) + cos^(...

MB
Answered by Mohamed B. Maths tutor
5432 Views

which verbal tense is used to express an order in French?

The verbal tense to express an order in French is the imperative just as in English. For example if your parents ask you to clean your room they will say 'range ta chambre'. 'Range' being the imperative o...

NT
Answered by Nelcya T. French tutor
1911 Views

What are phagocytes and how do they protect the body?

Phagocytes are large irregularly shaped white blood cells that are involved in the non-specific immune system. They have the ability to engulf and digest foreign bodies, destroying them in a process known...

AK
Answered by Atousa K. Biology tutor
3158 Views

How does the presentation of a virus antigen by a macrophage lead to antibody production against the antigen?

T helper cells recognise and bind to the antigen and become activated. The activated T helper cell stimulate B cells to form plasma cells that produce and release antibodies that are specific to the viral...

PP
Answered by Prakruthi P. Biology tutor
3345 Views

How do I write a good Psychology essay?

It goes without saying that a thorough knowledge of the subject is important. In order to be able to score all the points for the outline portion of the essay you must be able to describe and explain theo...

DG
Answered by Daniel G. Psychology tutor
3241 Views

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