exam
Maths Puzzle
Numerical Ability
a^-1 - a/a^-2 - 1
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exam Other Question
Triangle PQR has vertices P(asqrt3,bsqrt3), Q(a/2sqrt3,3bsqrt3), R(0,5bsqrt3). Prove triangle PQR is isosceles.
A professional stunt performer at a theme park dives off a tower 21m high into the water. His height above the ground at time t seconds is given by the equation h=4.9^2+21.
a.)