SOLUTION: Find the value of x for which the statement csc(7x+9)=sec(5x) is true

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Question 824915: Find the value of x for which the statement csc(7x+9)=sec(5x) is true
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find the value of x for which the statement csc(7x+9)=sec(5x) is true
csc(7x+9)=sec(5x)
1/sin(7x+9)=1/cos(5x)
Identity:cosA=sin(90-A)
1/sin(7x+9)=1/sin(90-5x)
7x+9=90-5x
7x+9+5x=90
12x=81
x=81/12=6.75
Note: This supersedes an earlier solution.