Q.
The general solution of the equation sin100x−cos100x=1 is
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a
2nπ+π3,n∈I
b
nπ+π2,n∈I
c
nπ+π4,n∈I
d
2nπ−π3,n∈I
answer is B.
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Detailed Solution
We have sin100x−cos100x=1or sin100x=1+cos100xSince L.H.S. ≤ 1 and R.H.S. ≥ 1, L.H.S. = R.H.S. = 1then , x=nπ+π2,n∈I
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