exam Maths Puzzle Numerical Ability

Evaluate:
(a)
Arcsin (-1/2)
(b)
sin [ Arcsin (-3/5)]

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exam Other Question

Three times the second of the consecutive even integers is 14 more than the sum of the first and the third. Find the middle integer. how to solve the sum of x and y is 13 and the sum of 3 times x and 4 times y is 44.