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tembo

Questions (3)

Given that the equation of the circle is x^2+y^2+2x-8y+5=0(i)find the centre and radius of the circle (ii)Determine whether the
1. 2 answers
2. 665 views
find the coefficient of 1/x^3 in the expansion of (3x-2/x^2)^6
1. 1 answer
2. 348 views
Prove the following trigonometric identities(i)(1+cotx)^2 +(1-cotx)^2=2cosec^2x (ii)cos(270degrees+theta)/cos(360degrees -theta)
1. 1 answer
2. 1,417 views