find the value of x.
Asked by Amee | 18th Dec, 2012, 08:39: PM
Expert Answer:
LET sin-1 x=a
therefor sin a=X
given cos a=1/9
therefor X^2=(sin a)^2=1-1/81=80/81
therefor x=(80/81)^(1/2)=(4root 5)/9
Answered by | 20th Dec, 2012, 11:32: PM
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