# Maths A level Core 1 Last resit 2019 May 15thWatch

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1 week ago
#81
What was the are question and value for t
0
1 week ago
#82
What was the area question and value for t
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1 week ago
#83
How did everyone find the value for t
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1 week ago
#84
(Original post by vx038)
sorry, it wasn't perpendicular. I am pretty sure the question was something like the line that passes through point B and the line that passes through point C are both normals to curve H. The lines are parellel to the straight line with equation 4y=3x+5.
Yes, I was just about to say the exact same thing. That’s why the gradient was -4/3 and not 3/4.
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1 week ago
#85
(Original post by Ksg5465)
How did everyone find the value for t
My method was a bit weird: I used the sq root(x2-x1)^2 +(y2-y1)^2 -equation of the line formula because AC =BC. I then plugged in the coordinates I knew for both individual set of line equations. Both sqroot signs cancelled. You are the left with two sets of quadratics and +9. Expand the brackets and solve for t, which gave me t = 7/4. I dunno if the above makes sense or if I got the right answer but :/
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1 week ago
#86
what did everyone get for the sum of 4 terms answer?
0
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