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Mathematics, 03.05.2021 02:10 alliemeade1

Q8. Find sech-1(x) given that cosh y eye- -y
2
A. sech-1(x) = ln2 + V1 – x2 = ln|x|
B. sech-'(x) = In|1 - V1 - x? - In|x|
C. sech-1(x) = In|2 + V1 - x?] + In|x|
D. sech-'(x) = ln|1 + V1 – x2) - In|x|​

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Q8. Find sech-1(x) given that cosh y eye- -y
2
A. sech-1(x) = ln2 + V1 – x2 = ln|x|
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