Discover Questions

Differentiate(t) = (cos^3 t+ 3cost +7)^9? In equal-tempered tuning the frequency (in Hz) of the note one tone above 220 Hz is...? Could a black hole exist within the event horizon of a bigger black hole? ~ x + y + z = 3, x² + y² + z² = 5, x³ + y³ + z³ = 7 ➪ x⁴ + y⁴ + z⁴ = ? Naphthalene sublimation rate=3*10^-5/min. Volume of room=60m^3. How would I calculate the naphthalene concentration in the air of the room?