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Trigonometric equations

Find the value of x (in degrees) for:

cos(6x+5) = 1/sec(4x+15)



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The solution is attached below in two files. the files are identical in content, only differ in format. The first is in MS Word XP Format, while the other is in Adobe pdf format. Therefore you can ...

Solution Summary

Teh solution shows how to use trigonometric identities and periodicity to solve the trigonometric equations.