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    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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    (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
    What did you get as your answer?
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    (Original post by notnek)
    What did you get as your answer?
    0.9998... and its 1/2 in the markscheme
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    (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
    \displaystyle \cos \left( - \frac{\pi}{3} \right) = \frac{1}{2}

    Did you not simplify further or not have your calculator in radians?
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    (Original post by pondsteps)
    0.9998... and its 1/2 in the markscheme
    Is your calculator in radians mode?
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    (Original post by Ayman!)
    \displaystyle \cos \left( - \frac{\pi}{3} \right) = \frac{1}{2}

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