- Solve the equation: 2 sin^2 theta-3 sin theta+1=0?

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How many grams of Na2CO3 will be produced from the thermal decomposition of 250.0 g of NaHCO3? What insect looks similar to a cockroach but is bigger, has pinchers, and thick antennas ? What does curl and divergence of vector field precisely measure? Assume the random variable X is normally distributed with mean μ=
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Thanks!? Found rusted metals in ground for years.want to know how to clean the rust off and keep them clean.from rusting again?