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Given y = 2x(x2 – 1)5, show that (a) dy/dx = g(x)(x2 – 1)4 where g(x) is a function to be determined. (b) Hence find the set of values of x for which dy/dx > 0

Given y = 2 x ( x 2 – 1) 5 , show that (a) d y/dx = g( x )( x 2 – 1) 4 where g( x ) is a function to be determined. dy/dx= (2)( x 2 – 1) 5 + (2x)*5(x 2 – 1) 4 (2x) dy/dx= ( x 2 – 1) 4 ( 2( x 2 – 1) + 20x 2 )...
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Answered by Abi I. • Maths tutor
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√5(√8 + √18) can be written in the form a√10 where a is an integer. Find the value of a.

√40 + √90 = (√10 x √4 ) + (√10 x √9 ) = 2√10 + 3√10=5√10
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Answered by Abi I. • Maths tutor
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How do you know when to use the imperfect or preterite past tenses?

Preterite- would be used for SINGULAR actions in the past; completed actions Imperfect- repeated actions in the past( saying I used to do something...) or descriptions We generally say that imperfect is a &q...
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Answered by Anna T. • Spanish tutor
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Give a basic overview of the of the digestive system.

The digestive system is a tube starting from the mouth and ending at the anus. Between are different compartments with different roles. The first stage of digestion occurs in the mouth. The teeth grind the f...
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Answered by Nirali V. • Biology tutor
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Describe the similarities and differences between ultrafiltration in the kidneys and the formation of tissue fluid.

Both are processes which involve the filtration of small molecules (such as water, glucose, amino acids) out of capillaries, while larger molecules, proteins and cells (such as red blood cells) remain in the...
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Answered by Mollie G. • Biology tutor
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