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I need to describe two ways I would measure moles in chemistry lab and identify any equipment I would use? Could a black hole exist within the event horizon of a bigger black hole? What about oxidation reaction charge? If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? Chi mi sa spiegare questa dervata (ln^2x)/x dx?