express (1+4(root7)) / (5+2(root7)) as a+b(root7), where a and b are integers
1+4(root7) x 5 - 2(root7)5+2(root7) 5 - 2(root7)5 - 2(root7) + 20(root7) - (8x7) 25 - (4x7)5 +18(root7) - 56 -3-51 + 18(root7) -317 - 6(root7)ie a = 17, b = -6
HB
Related Maths A Level answers
All answers ▸Find the exact value of sin(75°). Give your answer in its simplest form.
How do I use the product rule for differentiation?
If the velocity of a particle is given by t^2+t, then determine the acceleration of the particle when t=4.
At time t = 0, a particle is projected vertically upwards with speed u m s–1 from a point 10 m above the ground. At time T seconds, the particle hits the ground with speed 17.5 m s–1. Find the value of u and T and evaluate the model. (AS mechanics)