Why is my answer incorrect?
Check for any silly mistakes, a lost negative or a simple arithmetic error. If you can’t find any, we’ll work through the question together and see where the method differs from yours. Then we will work out why your method might not be correct and try to fill the gap in your knowledge.
ZG
Related Maths A Level answers
All answers ▸Do the circles with equations x^2 -2x + y^2 - 2y=7 and x^2 -10x + y^2 -8y=-37 touch and if so, in what way (tangent to each other? two point of intersection?)
Solve for x (where 0<x<360) 2sin^2(x) - sin(x) - 1 = 0
Using Pythagoras' theorem, show that sin^2(x)+cos^2(x)=1 for all x.
What are the parameters of the Poisson distribution?