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Lol.
u're taking the scalar product of n [vctor perpendicular to the plane] and b[direction vector of the line]...if line and plane are parallel..then the vector perpendicular to the plane should also be perpendicular to the linehttp://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_qp_33.pdf
in question 9 part (i) when i take the scalor product the answer comes out to be zero doesn't that show that they are perpendicular so how come its showing they are parallel please help quickly
so u get it as zerooh yeah right thanks a lot i just suck at vector questionsu're taking the scalar product of n [vctor perpendicular to the plane] and b[direction vector of the line]...if line and plane are parallel..then the vector perpendicular to the plane should also be perpendicular to the line
i hope an easy question comes on vectors
yeah inshaAllah..i too hope sooh yeah right thanks a lot i just suck at vector questions
sin (pi -x) = sinx....remember? angle in the first 2 quadrants are same and positive for sin?http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s10_qp_31.pdf
question 6 part (i) whatever i try i end up with sin(pie-x) how come its just sin x please help
thankssin (pi -x) = sinx....remember? angle in the first 2 quadrants are same and positive for sin?
i have to go so i didnt check the question...but all i can tell u is...dont forget sin(pi -x) = sin x
similarly sin(pi +x) = -sin x [angle in the third quadrant]
was pretty tough.. what was ur variant?
32 .. it was definitely harder than the past papers I attempted..
I believe it was one of the hardest of papers! what do u think the grade required for A will be? and how'd ur class mates do? were they in the same misery?
Im the only person doin A levels at my school.. so my only compariosn is you guys. And I hadn't studied much so I can't say but it seemed pretty tough... but the threshold for maths is always very high .. so maybe 60?
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