Given tan A= 2/9 and that angle A is in quadrant I, find the exact value of sec A in simplest radical form using a rational denominator

cot is adjacent/opposite.  Therefore:

adjacent = 3

opposite = 7

cos is adjacent./hypotenuse.  We can use the Pythagorean theorem to find the hypotenuse.

a2+b2=c2

32+72=c2

9+49=c2

58=c2  Take the square root of both sides

√58=c

cos = 3/√58  To rationalize, multiply the numerator and denominator by √58

cos = (3/√58)(√58/√58) = 3√58/58

Step-by-step explanation:

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

should have been evaluated with one odd value and one even value. the expressions have equivalent values when . when , the first expression has a value of 3 and the second

step-by-step explanation: