In order to get the exact answer using the Solve[] function, it would be useful to enter the specific interval. For example in calculating the values of x in the Solve function
Solve[2 Sin[x]^2 - Sin[x] - 1 == 0, x, Reals]
I would like the answer on the interval from 0 to 2 Pi.
Without the ability to enter the desired interval, I get the answer of:
{{x -> ConditionalExpression[-(\[Pi]/6) + 2 \[Pi] C[1],
C[1] \[Element] Integers]}, {x ->
ConditionalExpression[\[Pi]/2 + 2 \[Pi] C[1],
C[1] \[Element] Integers]}, {x ->
ConditionalExpression[(7 \[Pi])/6 + 2 \[Pi] C[1],
C[1] \[Element] Integers]}}
Which is not exactly correct since answer #1 is less than 0 and the answer for 2 pi (11pi/6) is not listed.
Thanks,
Mitch Sandlin
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