exam Maths Puzzle Numerical Ability

Please help! I have no idea how to even approach this problem. Thank you. One on one. Find two positive real numbers that differ by 1 and have a product of 1.

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exam Other Question

1)show me how to compute the following:
log_2(4)log_4(6)log_6(8)


2a)write as sum and difference logs:
b)show log_b(A/D)=log_b(A)-log_b(D)
log_4[-4^3x^2(x-1)^1/2/(x+3)^3
Write a function using this form. y=ab^x and these points (2,56)(0,3.5)