exam Maths Puzzle Numerical Ability

Given that (2-y)^3=8-12y+6y^2-y^3 find (2-y)^4

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please solve this problem: please solve the trigonometric equation sin(2x-10 degress)=1/2 give all positive values of the angle between o to 360 degress give any approximate value Find two consecutive numbers such that the sum of their squares is 35 more than twice the square of the smaller.