exam Maths Puzzle Numerical Ability

write the complex number 2 + the radical sign with 3j in trigonometric form. Give the angle to the nearest o.1 degree.

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exam Other Question

ABC is a triangle. ABD is a triangle within triangle ABC. Angle DBA is congruent to angle ACB.

Prove (AC)(AD)= (AB)squared.

Thanks! the solution set for x+y=2 and 2x+y=3