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The general solution of the equation 2co...

The general solution of the equation `2cos2x = 3.2cos^2x - 4` is (A) `x = 2n pi, n in I` (B) `x = n pi, n in I` (C) `x = (n pi)/4, n in I` (D) `x = (n pi)/2, n in I`

A

`x=2npi,n in"I"`

B

`x=npi,n in"I"`

C

`x=(npi)/4,n in"I"`

D

`x=(npi)/2,n in"I"`

Text Solution

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The correct Answer is:
B
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Knowledge Check

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