Math, asked by takudzwamamire2112, 11 months ago

solve the equation cos3x=o

Answers

Answered by hdewangan
0

cos3x = 0 \\  \\ cos3x = cos90 \\  \\ 3x = 90 \\  \\ x =  \frac{90}{3}  \\  \\ x = 30

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