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Find the value of x when 2x^2 - x - 6 = 0

2x2 - x - 6 = 0

This must first be factorised - I use the 'box method' when the reciprocal of x2 is >1. This is difficult to explain via writing but it inv...

GS
Answered by Gayathri S. • Maths tutor
8279 Views

Translate the following into French: "I do not think she is coming tomorrow"

Je ne pense pas qu'elle vienne demain. 

CC
Answered by Ciaran C. • French tutor
2190 Views

Translate the following into French: "If I won the lottery tomorrow, I would buy a new house."

Si je gagnais à la loterie demain, j'achèterais une nouvelle maison

CC
Answered by Ciaran C. • French tutor
4151 Views

If given two parametric equations for a curve, how would you work out an equation for the gradient?

Parametric equations will have both the x and the y coordinates expressed in terms of another paramater, usually t. Gradients of curves are expressed in the form of an equation of dy/

MW
Answered by Mollie W. • Maths tutor
4134 Views

Show that Sec2A - Tan2A = (CosA-SinA)/(CosA+SinA)

Sec2A - Tan2A Definition of Sec and Tan = 1/Cos2A - Sin2A/Cos2A Combining Fractions = (1 - Sin2A) / (Cos2A) Apply Double Angle Formula = (1 - 2SinACosA) / (Cos2A - Sin2A) Make use of...

JC
Answered by James C. • Maths tutor
35596 Views

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