Asked by Liv
Evaluate
arctan(cot10Pi/9)
sec(arccos(-1/6)
csc(arcsec(5/3)
sin(2 arccos(sqrt5/5)
arctan(cot10Pi/9)
sec(arccos(-1/6)
csc(arcsec(5/3)
sin(2 arccos(sqrt5/5)
Answers
Answered by
ANON
Try solving the problems first on your own and check if the answer you got is correct.
tips: Simplify the form like sec(x)to 1/cos(x). if the problem is the arctan, arcsin, and the likes, try to convert the equation into something like this:
x = arctan (cot(10pi/9))
tan(x) = cot(10pi/9)
then find the arctan of both sides once you simplified the right side.
arctan(cot(10pi/9))= 7pi/18
sec(arccos(-1/6))= -6
csc(arcsec(5/3))= 5/4
sin(2*arccos(sqrt(5)/5))= 4/5
Good luck solving! :D
tips: Simplify the form like sec(x)to 1/cos(x). if the problem is the arctan, arcsin, and the likes, try to convert the equation into something like this:
x = arctan (cot(10pi/9))
tan(x) = cot(10pi/9)
then find the arctan of both sides once you simplified the right side.
arctan(cot(10pi/9))= 7pi/18
sec(arccos(-1/6))= -6
csc(arcsec(5/3))= 5/4
sin(2*arccos(sqrt(5)/5))= 4/5
Good luck solving! :D
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