What kind of calculator do you have? Is it set in radians or degrees? What exact button combination are you using?

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- May 12th 2011, 01:45 AM #1

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## Value of sec^2 x

Hi,

Could some work out the value of sec^2 x when x is 0.25. I understand that sec^2 x is 1/cos^2 x. I keep getting 1.000019039 but I know this is not correct.

Could someone see whether they get the same values.

Also when x is equal to : 0.5, 0.75, and 1.

I am revising the Simpson's rule.

Thanks.

- May 12th 2011, 01:55 AM #2

- May 12th 2011, 10:16 AM #3

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