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mathaddict4471

  • 3 years ago

lim x --> pi/3 for x (cos x)^2 the answer is zero but how would you solve it with out using a calculator?

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  1. cooleeee
    • 3 years ago
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    divide all by 2 then multiplybypi sqaured

  2. mathaddict4471
    • 3 years ago
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    wait i think its 4 by using the unit circle whoops

  3. mathaddict4471
    • 3 years ago
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    what i did was pi/3 times cospi/3 squared with x equaling pi/3

  4. jtvatsim
    • 3 years ago
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    Well, if it's the entire cosine squared, then you should see (cos pi/3)^2 = (1/2)^2 = 1/4. Then, multiplying by x = pi/3, is pi/12.

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