Proving the identity and finding f
Problem:
Prove the identity and find f(x)
1. (i) Prove that
cosh 2θ≡2 sinh2 θ+ 1
(ii) A chain hangs in a shape called a catenary, the equation of which is f(x) = a cosh (x/ a)Determine the value of x when f(x) = 48 and a = 35.
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Prove the identity and find f(x).A chain hangs in a shape called a catenary, the equation of which is
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