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The general solution ofthe trigonometric...

The general solution ofthe trigonometrical equation `sinx+cosx=1` for `n=0, +- 1, +-1` is given by (a) `x=2npi` (b) `x=2npi+pi/2` (c) `x=npi+(-1)^npi/4-pi/4` (d) non of these

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