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No. But sin2a equals 1 minus cos2a ... and ... cos2a equals 1 minus sin2a
They equal a minus and two +'s or two -'s equal a + :)
If you mean CI minus XLVIII then it is LIII because 101 minus 48 = 53
If you mean 668 minus 412 then it is 256
If you mean 1130 minus 15 minus 16 then it is 1099