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How to differentiate y = xcos(x)

You would first of all establish which differentiation rule is required, for this question it would be useful to use the product rule splitting xcos(x) into x multiplied by cos(x). We can label u = x and v =...
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Answered by Sophie C. • Maths tutor
7332 Views

Why was there a détente between the United States and Soviet Union in the 1970’s?

One of the key reasons as to why the United States sought détente, or an easing of relations, with the Soviet Union in the 1970’s was the internal domestic issues that arose out of the war in Vietnam. Since ...
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Answered by Asher C. • History tutor
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Describe and explain how fish are adapted for gas exchange.

Fish gills are made up of thin plates called gill filaments , which are covered in structures called lamallae . Both the gill filaments and lamellae provide a large surface area for gaseous exchange, increas...
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Answered by Natalie F. • Biology tutor
27838 Views

How do I know if a verb in the perfect tense should be conjugated with avoir or être?

The perfect tense is used when we would like to describe an action that we have already done. It is usually formed by using the present tense of the verb avoir followed by a past participle. For example, &qu...
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Answered by Vinay J. • French tutor
2605 Views

¿Crees que pasar tiempo con la familia es algo bueno?

Si. La familia es un grupo de personas muy cercanas a quienes somos como humanos. La familia es muy importante ya que ellos se cuidan entre ellos y se muestran amor y paz.
Answered by • Spanish tutor
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