2 years ago

Find all solutions to the equation secx(2 cosx-sqrt 2)=0

Mathematics

2 answers:

Lisa [10]2 years ago

7 0

We are given with the equation <span>secx(2 cosx-sqrt 2) = 0</span>

ollegr [7]2 years ago

6 0

Hello,

We suppose x≠+/-π/2.

2cos x - √2=0
==>cos x=√2/2
==>x= π/4 or x=3π/4 (modulo 2π)

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