exam Maths Puzzle Numerical Ability

factor completely.

b^2-ab-6a^2

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exam Other Question

write an equation for the circle with the endpoints of the diameter at (-2,13) and (8,7) Used the symbol @ for the regular symbol.

Given that cos@ = - 4/5 and @ is in Quadrant 2, find:

sin @=
sin 2 @=
cos 3 @=
tan @ / 2=
sin (@ + 60 degrees)=