Which of these logarithmic challenges can you solve?
Can you solve the system of equations to find the values of x, y and z?
Can you find the sum of the squared sine values?
Two trees 20 metres and 30 metres long, lean across a passageway between two vertical walls. They cross at a point 8 metres above the ground. What is the distance between the foot of the trees?
Two brothers belong to a club with 10 members. Four are selected for a match. Find the probability that both brothers are selected.
The equation a^x + b^x = 1 can be solved algebraically in special cases but in general it can only be solved by numerical methods.
Can you find the area of the central part of this shape? Can you do it in more than one way?
Can you hit the target functions using a set of input functions and a little calculus and algebra?
Can you use numerical methods to solve this equation to 1 decimal place?
Observe symmetries and engage the power of substitution to solve complicated equations.
