exam Maths Puzzle Numerical Ability

Indicate whether the problem is true or false but show all work
sin 0(with a dash through it) = 1/csc 0(with a dash through it))

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exam Other Question

A triangular tent is 5ft by 7 ft and 7ft at the peak. What is the surface area and volume? 2x+2y=5
y=1/4x