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Thanks

James

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- May 23rd 2013, 04:00 AMJamesTcos, sin, theta range
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Thanks

James - May 23rd 2013, 04:01 AMJamesTRe: cos, sin, theta range
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and this.

Thanks,

James - May 23rd 2013, 05:33 AMibduttRe: cos, sin, theta range
Just remember the quadrants where a particular trigonometric ratio is positive. We know that

In First quadrant : all trigonometric ratios are positive

In second quadrant : Sine and co-secant are positive and rest all trigonometric ratios are negative

In Third quadrant : tangent and cotangent are positive and rest all trigonometric ratios are negative

In Fourth quadrant : cosine and secant are positive and rest all trigonometric ratios are negative

I think that should help you out.