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(i) Find the coordinates of the stationary point on the curve y = 3x^2 − 6/x − 2. [5] (ii) Determine whether the stationary point is a maximum point or a minimum point.

i) dy/dx = 0dy/dx = 6x + 6/x^2 6x + 6/x^2 = 06x^3 + 6 = 0x^3 + 1 = 0x^3 = -1x = -1y = 7(-1, 7)ii) d^2y/dx^2 = 6 - 12/x^3 x = -1 6-12/(-1)^3 = 18>0 therefore, minimum point
DY
Answered by Dila Y. • Maths tutor
9292 Views

What is the subjunctive tense?

Firstly, the subjunctive is not a tense, it is actually a mood. The subjunctive is known as a mood because it is used to express the sense that the speaker employs an attitude or feelings towards a fact or i...
SG
Answered by Schaunagh G. • French tutor
2475 Views

Cuando hay que usar 'ser' y cuando 'estar'? / When do I have to use 'ser' and 'estar'?

Ser and Estar are similar verbs but they each have specific situations where they are used. In general, we use Ser when we are identifying ourselves or others as well as our nationality e.g. Soy Cristina, so...
CC
Answered by Cristina C. • Spanish tutor
2628 Views

Find the Binomial Expansion of (1-5x)^4.

First I would set up how i was taught using Pascals Triange. As this is to the power of 4 the numbers across will be 1 4 6 4 1.Then I would multiply each number by the correct power of either (-5x) or (1). A...
MV
7165 Views

Compare and contrast the ways in which female madness is presented in both The Bell Jar and A Streetcar Named Desire.

The social pressures of women and their psyches are enforced by the omnipresence of newsand fashion media, which in post-war America propagated the domesticated role of womenwithin the household. Plath’s nov...
FJ
11477 Views