Qualification > Math

Math P1 Questions/Predictions

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nid404:
no problem  :)

Recko:
I have another question

oct/nov 06
question 9 i) & ii)

:)

Padapop:
or you could try vector method.

I use it and i find it easier, though some ppl might find it weird.

The tip is to use your gradient as a vector. Then u dot product them.

nipuna92:
can u show the dot product thing here

Padapop:
oh..

so for example, if the first line's gradient is = 2. that would be 1i + 2j. And the second line's gradient is 3/2, that would be 2i + 3j.

(1i + 2j) . (2i + 3j) blah blah blah the dot product formula.

U could try it, but i think nid's one is standard mark scheme thing, so that way is more standard. Ull get the same answer thou.

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