Attachment 28436Attachment 28437

Thanks

James

Printable View

- May 23rd 2013, 05:00 AMJamesTcos, sin, theta range
Attachment 28436Attachment 28437

Thanks

James - May 23rd 2013, 05:01 AMJamesTRe: cos, sin, theta range
Attachment 28438

and this.

Thanks,

James - May 23rd 2013, 06:33 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.