exam Maths Puzzle Numerical Ability

Hey guys,

I really need help with them. I've been within my text, on the internet, and I can't find an example of how to do this problem.

Simplify the formula..

1

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exam Other Question

Write the equation of the line with given slope and y-intercept.

Slope: 1/2; y-intercept: (0, -2). Can someone please help me with this problem and show me how to do this for the next time. Thanks. evaluate sin((sin^-1)5/13 + (cos^-1)3/5) exactly