A-Level
CAIE
Further Mathematics
May 2025
QP-202505-Further Mathematics-P23 · Question 2
Question (excerpt):
9231/23/M/J/25 © UCLES 2025 [Turn over 2 (a) Starting from the definitions of tanh and sech in terms of exponentials, prove that tanh sech t t 1 2 2 + = . [3] .........................................…
9231/23/M/J/25 © UCLES 2025 [Turn over 2 (a) Starting from the definitions of tanh and sech in terms of exponentials, prove that tanh sech t t 1 2 2 + = . [3] .........................................…
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