Jan 2010 C2 Edexcel
http://www.thomas-reddington.com/uploads/7/7/8/3/778329/c2_qp_jan_2010.pdf
If we look at question 4a)
we work out angle ACB and it could either be 0.7835... OR 2.358
I know that 0.7835 is the correct angle to use BUT why would I use this angle and NOT 2.358?
If we look at question 4a)
we work out angle ACB and it could either be 0.7835... OR 2.358
I know that 0.7835 is the correct angle to use BUT why would I use this angle and NOT 2.358?
Look at the diagram. What is 2.358 radians in degrees?
135 degrees (2.358 * (180/pi))
angle in diagram is NOT obtuse so that is why???
angle in diagram is NOT obtuse so that is why???
Original post by jsmith6131
http://www.thomas-reddington.com/uploads/7/7/8/3/778329/c2_qp_jan_2010.pdf
If we look at question 4a)
we work out angle ACB and it could either be 0.7835... OR 2.358
I know that 0.7835 is the correct angle to use BUT why would I use this angle and NOT 2.358?
If we look at question 4a)
we work out angle ACB and it could either be 0.7835... OR 2.358
I know that 0.7835 is the correct angle to use BUT why would I use this angle and NOT 2.358?
Yeah well in the diagram is looks too small to be 2.538 radians, but how comes you got two answers?
Considering the value I found using the sin rule for ACB and then as the value is +ive we know the other +ive y value is in second quadrant so
pi - answer = other answer
pi - answer = other answer
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