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That was the trick....thank you for your help.
:oprove the identity
(1-sin^2beta)(1+sin^2beta)=2cos^2beta - cos^4 beta
I am having trouble with the topic
the question is find all the sine, cosine and tangent of alpha if sec alpha = -4sqrt5/5 and is in the second quadrant.
A balloon is between two spotters who are 1.2 miles apart. One
>spotter reports that the angle of elevation of the balloon is 76
>degrees, and the other reports that it is 68 degrees. What is the
>altitude of the balloon in miles?
Doctor Wants A Drug Level To Be 5.58 Mg In A Patient Taking 2.5 Mg How Often Should The Doses Be Taken?
And
What Is The Difference Between 2.5 Mg Every 12 Hrs And 5mg Every 24.
I Have The Formula But Am Not Sure How To Use It.
If 2.5 mg of a drug with half-life of 14 hrs is taken every 24 hrs, then to what level does the drug build up over time?
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