- Cos(arcsin x - arccos y)?

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An apple falls from a tree and hits the ground in 0.6 seconds later hits the ground. how fast is the apple falling when it hits the ground? An object moves with a constant speed of 23.6 m/s on a circular track of radius 195 m. What is the acceleration of the object? If A, B and C are Hermitian operators, determine if the following combinations are Hermitian:
(a) A + B (b) 1/2i[A,B] (c) (ABC −CBA) ? Why is a balloon inflated at normal temp?? What would happen if I heated it up? Test for the convergence the seriesΣsin1∕n?