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ratio, rational, TRIG, ct 45, cos theta

Trignometric problem

posted by amanyadeep on Feb 20, 2008

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what is the value of sec theta at 45 degree

I have the same problem.

Best Solution

posted on Aug 21, 2008

Zazouht

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The answer is Square root of 2. (

)
They way it works is :
sec theta at 45 degre is 1 over cosine of theta or
cosine of theta is square root of 2 over 2.
Therefore you have 1 over square root of 2 over 2.
After rationalization and simplification you should have

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Solution #2

posted on May 09, 2008

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it is 2/the square root of 2

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