great video. probably the reason why there isn't any comments. anyways i would like to ask if you could put your videos in a playlist eg. A.S level C1, C2 and S1 for example. it would help me and everyone else to search for your fantastic videos when revising. thank you
@ExamSolutions_Maths
9 жыл бұрын
+tyrell dwyer Use my website. Its all there, not my You Tube channel..
@tyrelldwyer5368
9 жыл бұрын
+ExamSolutions ok thanks, i didn't realise
@ExamSolutions_Maths
11 жыл бұрын
To get any gradient of a line you use the formula (diff in y / diff in x). However, this video tries to illustrate the connection between one gradient and the perpendicular gradient.
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