exam Maths Puzzle Numerical Ability

find all exact solutions of the equation:
2sinx+1=0

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exam Other Question

it takes a passenger train 2 hrs less time than it takes a freight train to make the trip from central city to clear creek.the passenger train avarages 96km/h while the freight train averages 64km/h.how far is it from central city to clear creek? 1) Cab Fare, A taxicab charges $1.50 for the first 1/5 mi. and 30 cents for each additional 1/5 mi. Determine the cost of 10 mi. trip.

2) Flying West, New York City is on easter