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Define an obtuse angle.

An angle between 90 degrees and 180 degrees. NB- a reflex angle is an angle between 180 degrees and 360 degrees.

Answered by Roshini M. • Maths tutor

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How do you solve a simultaneous equation such as x+2y=10 and 3x+2y=18?

P (–1, 4) is a point on a circle, centre O which is at the origin. Work out the equation of the tangent to the circle at P. Give your answer in the form y = mx + c

Simplify, leaving your answer as a quadratic: (2x + 3)/(x+4) - (3x - 6) = 4

Solve these pair of simultaneous questions: 3x+2y=17 4x-y=30

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