Math, asked by oyeitssai, 1 year ago

What is the general solution of cos (2x) = 0?

Answers

Answered by Anonymous
3
hi dear here is the answer

Cos 2x = 0
cos 90 = 0
and
cos 270 = 0
2x= 2π + π/2
or
2x = 2π - π/2

General Formula:
2x = 2nπ + π/2

or 

2x = 2nπ - π/2

x = nπ + π/2

or 

x = nπ - π/2

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