- Messages
- 28
- Reaction score
- 5
- Points
- 13
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Put x = 3^y and u'll get the eqn similar to the one above...!http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s11_qp_31.pdf
question 4 part (ii) please someone help quickly
thanks a lotPut x = 3^y and u'll get the eqn similar to the one above...!
u know the values of x ...so put 3^y = that value...
2 of them can not be solved...find the answer..
27^y = (3^3)^y =3^3y = x^3
Lol.yar p3 ka paper hay aaj
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 line so u get it as zerohttp://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
oh yeah right thanks a lot i just suck at vector questions i hope an easy question comes on vectorsu'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 so u get it as zero
yeah inshaAllah..i too hope sooh yeah right thanks a lot i just suck at vector questions i hope an easy question comes on vectors
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]
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