Questions (1 Viewer)

[181jsmith]

1. Solve the equation

2. P (2ap, ap^2) and Q (2aq, aq^2) are 2 points on the parabola x^2= 4ay with parameter values p=4 and q=-6. Show that the lines OP and OQ are inclined at 45 degrees to each other.

3. Solve the inequality

4. Show that 2cos(A - B)sin(A+B)= sin2A + sin 2B

5. The polynomial eq has roots
a, a^2 and a^3

Find in terms of b,c and d

Show that

thanks.

 

[SpiralFlex]

1.






2.

Find the gradients, you should get respectively.








3.








4.








5 i. Sum of roots:

Two at a time:

Product:















ii.

 

[taeyang]

1.






2.

Find the gradients, you should get respectively.








3.








4.








5 i. Sum of roots:

Two at a time:

Product:















ii.

Juices are flowing.

 

[bleakarcher]

for q5 i) can u just write -c/d as an equivalent expression or does it have to be in terms of b also

 

[SpiralFlex]

I would assume by the question, in terms of "b, c, d".