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# 2014 jan c12

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1. to find the y intersection dont we substitute the x with zero so cos (-pi/3) is the intersection??? why is it wrong
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2. (Original post by pondsteps)
to find the y intersection dont we substitute the x with zero so cos (-pi/3) is the intersection??? why is it wrong
3. (Original post by notnek)
0.9998... and its 1/2 in the markscheme
4. (Original post by pondsteps)
to find the y intersection dont we substitute the x with zero so cos (-pi/3) is the intersection??? why is it wrong

Did you not simplify further or not have your calculator in radians?
5. (Original post by pondsteps)
0.9998... and its 1/2 in the markscheme
6. (Original post by Ayman!)

Did you not simplify further or not have your calculator in radians?
uhm oopps 😁
thanks :P
7. (Original post by notnek)
i just realized lol 😁 thanksx

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