exam Maths Puzzle Numerical Ability

I need to know what the 1st and 2nd number in an ordered pair is . Can you help?

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exam Other Question

points M, N, and X are collinear and X is between M and N. If MN=20 and the ratio between MX and NX is 2:3 what is the length of NX? I divid them into eachother I need help on trig identities please.....

Use the fundamental identities to write the expression in terms of a single trig function

(cscx/secx-tanx) - (cscx/secx+tanx)

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