helped me a lot. i am doing cambridge as and a level further maths by my own i.e self study as my school doesnt't offer it and your videos really help me with all the concepts
Algebraically that is true, but it is not necessary in this case. r=-sqrt(10) will be the same polar graph as r=+sqrt(10). They both represent circles with a radius of sqrt(10), just like the corresponding rectangular equation.
helped me a lot. i am doing cambridge as and a level further maths by my own i.e self study as my school doesnt't offer it and your videos really help me with all the concepts
Awesome, glad to help! :)
31:11 wouldn't it be + or - the underroot of 10
Algebraically that is true, but it is not necessary in this case. r=-sqrt(10) will be the same polar graph as r=+sqrt(10). They both represent circles with a radius of sqrt(10), just like the corresponding rectangular equation.